1.1.1
Refer people using a suspected cancer pathway referral for lung cancer if they:
-
have chest X‑ray findings that suggest lung cancer, or
-
are aged 40 and over with unexplained haemoptysis. [2015]
Use this guideline to guide referrals. If still uncertain about whether a referral is needed, consider contacting a specialist (see the recommendations on the diagnostic process). Consider a review for people with any symptom associated with increased cancer risk who do not meet the criteria for referral or investigative action (see the recommendations on safety netting).
Refer people using a suspected cancer pathway referral for lung cancer if they:
have chest X‑ray findings that suggest lung cancer, or
are aged 40 and over with unexplained haemoptysis. [2015]
Offer an urgent, direct access chest X‑ray to assess for lung cancer in people aged 40 and over if they have 2 or more of the following unexplained symptoms, or if they have ever smoked and have 1 or more of the following unexplained symptoms:
cough
fatigue
shortness of breath
chest pain
weight loss
appetite loss. [2015]
Consider an urgent, direct access chest X‑ray to assess for lung cancer in people aged 40 and over with any of the following:
persistent or recurrent chest infection
finger clubbing
supraclavicular lymphadenopathy or persistent cervical lymphadenopathy
chest signs consistent with lung cancer
thrombocytosis. [2015]
Refer people using a suspected cancer pathway referral for mesothelioma if they have chest X‑ray findings that suggest mesothelioma. [2015]
Offer an urgent, direct access chest X‑ray to assess for mesothelioma in people aged 40 and over, if:
they have 2 or more of the following unexplained symptoms, or
they have 1 or more of the following unexplained symptoms and have ever smoked, or
they have 1 or more of the following unexplained symptoms and have been exposed to asbestos:
cough
fatigue
shortness of breath
chest pain
weight loss
appetite loss. [2015]
Consider an urgent, direct access chest X‑ray to assess for mesothelioma in people aged 40 and over with either:
finger clubbing or
chest signs compatible with pleural disease. [2015]
Refer people using a suspected cancer pathway referral for oesophageal cancer if they:
have dysphagia, or
are aged 55 and over, with weight loss, and they have any of the following:
upper abdominal pain
reflux
dyspepsia. [2015, amended 2025]
Consider non-urgent, direct access upper gastrointestinal endoscopy to assess for oesophageal cancer in people with haematemesis. [2015]
Consider non-urgent, direct access upper gastrointestinal endoscopy to assess for oesophageal cancer in people aged 55 or over with:
treatment-resistant dyspepsia, or
upper abdominal pain with low haemoglobin levels, or
raised platelet count with any of the following:
nausea
vomiting
weight loss
reflux
dyspepsia
upper abdominal pain, or
nausea or vomiting with any of the following:
weight loss
reflux
dyspepsia
upper abdominal pain. [2015]
Refer people using a suspected cancer pathway referral for pancreatic cancer if they are aged 40 and over and have jaundice. [2015]
Consider an urgent, direct access CT scan, or an urgent, direct access ultrasound scan if CT is not available, to assess for pancreatic cancer in people aged 60 and over with weight loss and any of the following:
diarrhoea
back pain
abdominal pain
nausea
vomiting
constipation
new‑onset diabetes. [2015]
Consider a suspected cancer pathway referral for people with an upper abdominal mass consistent with stomach cancer. [2015]
Refer people using a suspected cancer pathway referral for stomach cancer if they:
have dysphagia, or
are aged 55 and over, with weight loss, and they have any of the following:
upper abdominal pain
reflux
dyspepsia. [2015, amended 2025]
Consider non-urgent, direct access upper gastrointestinal endoscopy to assess for stomach cancer in people with haematemesis. [2015]
Consider non-urgent, direct access upper gastrointestinal endoscopy to assess for stomach cancer in people aged 55 or over with:
treatment-resistant dyspepsia, or
upper abdominal pain with low haemoglobin levels,or
raised platelet count with any of the following:
nausea
vomiting
weight loss
reflux
dyspepsia
upper abdominal pain, or
nausea or vomiting with any of the following:
weight loss
reflux
dyspepsia
upper abdominal pain. [2015]
Consider an urgent, direct access ultrasound scan to assess for gall bladder cancer in people with an upper abdominal mass consistent with an enlarged gall bladder. [2015]
Consider an urgent, direct access ultrasound scan to assess for liver cancer in people with an upper abdominal mass consistent with an enlarged liver. [2015]
Recommendations 1.3.1 to 1.3.4 are adapted from NICE's HealthTech guidance on quantitative faecal immunochemical testing to guide colorectal cancer pathway referral in primary care.
Offer quantitative faecal immunochemical testing (FIT) using HM‑JACKarc or OC‑Sensor to guide referral for suspected colorectal cancer in adults:
with an abdominal mass, or
with a change in bowel habit, or
with iron-deficiency anaemia, or
aged 40 and over with unexplained weight loss and abdominal pain, or
aged under 50 with rectal bleeding and either of the following unexplained symptoms:
abdominal pain
weight loss, or
aged 50 and over with any of the following unexplained symptoms:
rectal bleeding
abdominal pain
weight loss, or
aged 60 and over with anaemia even in the absence of iron deficiency.
FIT should be offered even if the person has previously had a negative FIT result through the NHS bowel cancer screening programme. People with a rectal mass, an unexplained anal mass or unexplained anal ulceration do not need to be offered FIT before referral is considered. [2023]
Refer adults using a suspected cancer pathway referral for colorectal cancer if they have a FIT result of at least 10 micrograms of haemoglobin per gram of faeces. [2023]
For people who have not returned a faecal sample or who have a FIT result below 10 micrograms of haemoglobin per gram of faeces:
safety netting processes should be in place
referral to an appropriate secondary care pathway should not be delayed if there is strong clinical concern of cancer because of ongoing unexplained symptoms (for example, abdominal mass). [2023]
Healthcare professionals should take into account whether people need additional help, information or support to return their sample. [2023]
Consider a suspected cancer pathway referral for colorectal cancer in adults with a rectal mass. [2015, amended 2023]
Consider a suspected cancer pathway referral for anal cancer in people with an unexplained anal mass or unexplained anal ulceration. [2015]
Refer people using a suspected cancer pathway referral for breast cancer if they are:
aged 30 and over and have an unexplained breast lump with or without pain, or
aged 50 and over with any of the following symptoms in 1 nipple only:
discharge
retraction
other changes of concern. [2015]
Consider a suspected cancer pathway referral for breast cancer in people:
with skin changes that suggest breast cancer, or
aged 30 and over with an unexplained lump in the axilla. [2015]
Consider non-urgent referral in people aged under 30 with an unexplained breast lump with or without pain. For information about seeking specialist advice, see also recommendations 1.16.2 and 1.16.3 in the section on the diagnostic process. [2015]
Make a referral to a gynaecological cancer service using a suspected cancer pathway referral if physical examination identifies ascites and/or a pelvic or abdominal mass (which is not obviously uterine fibroids). [2011, amended 2020]
Carry out tests in primary care (see recommendations 1.5.6 to 1.5.9) if a woman, or a trans man or non-binary person with female reproductive organs (especially if they are aged 50 or over) reports having any of the following symptoms on a persistent or frequent basis – particularly more than 12 times per month:
persistent abdominal distension (often referred to as 'bloating')
feeling full (early satiety) and/or loss of appetite
pelvic or abdominal pain
increased urinary urgency and/or frequency. [2011]
Consider carrying out tests in primary care (see recommendations 1.5.6 to 1.5.9) if a woman, or a trans man or non-binary person with female reproductive organs reports unexplained weight loss, fatigue or changes in bowel habit. [2011]
Advise any woman, or trans man or non-binary person with female reproductive organs who is not suspected of having ovarian cancer to return to their GP if their symptoms become more frequent or persistent, or both. [2011]
Carry out appropriate tests for ovarian cancer (see recommendations 1.5.6 to 1.5.9) in any woman, or trans man or non-binary person with female reproductive organs who is aged 50 or over and who has experienced symptoms within the last 12 months that suggest irritable bowel syndrome (IBS), because IBS rarely presents for the first time at this age. (See NICE's guideline on irritable bowel syndrome in adults.) [2011]
For women, and trans men and non-binary people with female reproductive organs who are aged 39 or under with persistent symptoms that suggest ovarian cancer (see recommendations 1.5.1 to 1.5.4):
do not use serum CA125 measurement in isolation for decision making (it is not an accurate indicator of ovarian cancer risk in this age group; although the risk of ovarian cancer is low, it remains a clinical concern and is often diagnosed late)
consider an urgent, direct access ultrasound scan of the abdomen and pelvis. [2026]
If the ultrasound scan outlined in recommendation 1.5.6 is normal:
identify any other potential causes of the symptoms and investigate as appropriate, and
if no other cause is identified, advise a return to the GP if the symptoms become more frequent or persistent, or both. [2026]
For women, and trans men and non-binary people with female reproductive organs who are aged 40 or over with persistent symptoms that suggest ovarian cancer (see recommendations 1.5.1 to 1.5.5), measure CA125 in primary care. [2026]
Arrange an urgent, direct access ultrasound scan of the abdomen and pelvis depending on age and serum CA125 according to the thresholds in table 1. [2026]
| Age group (years) | CA125 threshold (IU/ml) |
|---|---|
|
40 to 49 |
35 IU/ml or greater |
|
50 to 59 |
31 IU/ml or greater |
|
60 to 69 |
24 IU/ml or greater |
|
70 to 79 |
25 IU/ml or greater |
|
80+ |
31 IU/ml or greater |
If an ultrasound scan suggests ovarian cancer, make a referral to a gynaecological cancer service using a suspected cancer pathway referral. [2011, amended 2026]
If the serum CA125 does not meet the threshold outlined in recommendation 1.5.9, or meets the threshold but the ultrasound scan is normal:
identify any other potential causes of the symptoms and investigate as appropriate, and
if no other cause is identified, advise a return to the GP if the symptoms become more frequent or persistent, or both. [2026]
For a short explanation of why the committee made the 2026 recommendations and how they might affect practice, see the rationale and impact section on age and serum CA125 thresholds for detecting ovarian cancer.
Full details of the evidence and the committee's discussion are in evidence review B: dual testing with serum CA125 and ultrasound scan compared to serum CA125 alone, and age and serum CA125 thresholds for detection of suspected ovarian cancer in adults.
Refer women, and trans men and non-binary people with female reproductive organs using a suspected cancer pathway referral for endometrial cancer if they are aged 55 and over with unexplained post-menopausal bleeding that cannot be attributed to hormone replacement therapy (HRT). [2015, amended 2026]
Consider an urgent, direct access ultrasound scan to assess for endometrial cancer in women, and trans men and non-binary people with female reproductive organs who are aged 55 and over with:
unexplained symptoms of vaginal discharge who:
are presenting with these symptoms for the first time, or
have thrombocytosis, or
report haematuria, or
visible haematuria, and:
low haemoglobin levels, or
thrombocytosis, or
high blood glucose levels. [2015]
Consider a suspected cancer pathway referral for endometrial cancer in women, and trans men and non-binary people with female reproductive organs who are aged under 55 with unexplained post-menopausal bleeding that cannot be attributed to HRT. [2015, amended 2026]
There is limited evidence for women, and trans men and non-binary people with female reproductive organs who experience unscheduled vaginal bleeding on sequential or continuous HRT. The British Menopause Society has published guidance on unscheduled bleeding on HRT (British Menopause Society: Management of unscheduled bleeding on HRT). [2026]
For a short explanation of why the committee made the 2026 recommendations and the related recommendation for research, and how they might affect practice, see the rationale and impact section on unscheduled bleeding and HRT.
Full details of the evidence and the committee's discussion are in evidence review C: endometrial cancer: unscheduled bleeding, HRT and cancer referral.
Consider a suspected cancer pathway referral for women, and trans men and non-binary people with female reproductive organs if, on examination, the appearance of their cervix is consistent with cervical cancer. [2015]
Consider a suspected cancer pathway referral for vulval cancer in women, and trans men and non-binary people with female reproductive organs who have an unexplained vulval lump, ulceration or bleeding. [2015]
Consider a suspected cancer pathway referral for vaginal cancer in women, and trans men and non-binary people with female reproductive organs who have an unexplained palpable mass in or at the entrance to the vagina. [2015]
Refer men, and trans women and non-binary people with male reproductive organs using a suspected cancer pathway referral for prostate cancer if their prostate feels malignant on digital rectal examination. [2015]
Consider a prostate-specific antigen (PSA) test and digital rectal examination to assess for prostate cancer in men, and trans women and non-binary people with male reproductive organs who have:
any lower urinary tract symptoms, such as nocturia, urinary frequency, hesitancy, urgency or retention, or
erectile dysfunction, or
visible haematuria. [2015]
Consider referring men, and trans women and non-binary people with male reproductive organs who have possible symptoms of prostate cancer, as specified in recommendation 1.6.2, using a suspected cancer pathway referral for prostate cancer if their PSA levels are above the threshold for their age in table 2. Take into account their preferences and any comorbidities when making the decision. [2021]
| Age (years) | Prostate-specific antigen threshold (micrograms/litre) |
|---|---|
|
Below 40 |
Use clinical judgement |
|
40 to 49 |
More than 2.5 |
|
50 to 59 |
More than 3.5 |
|
60 to 69 |
More than 4.5 |
|
70 to 79 |
More than 6.5 |
|
Above 79 |
Use clinical judgement |
For a short explanation of why the committee made the 2021 recommendation and how it might affect practice, see the rationale and impact section on PSA testing for prostate cancer.
Full details of the evidence and the committee's discussion are in evidence review A: PSA testing for prostate cancer.
Refer people using a suspected cancer pathway referral for bladder cancer if they are:
aged 45 and over and have:
unexplained visible haematuria without urinary tract infection, or
visible haematuria that persists or recurs after successful treatment of urinary tract infection, or
aged 60 and over and have unexplained non‑visible haematuria and either dysuria or a raised white cell count on a blood test. [2015]
Consider non-urgent referral for bladder cancer in people aged 60 and over with recurrent or persistent and unexplained urinary tract infection. [2015]
Refer people using a suspected cancer pathway referral for renal cancer if they are aged 45 and over and have:
unexplained visible haematuria without urinary tract infection, or
visible haematuria that persists or recurs after successful treatment of urinary tract infection. [2015]
Consider a suspected cancer pathway referral for testicular cancer in men, and trans women and non-binary people with male reproductive organs if they have a non‑painful enlargement or change in shape or texture of the testis. [2015]
Consider an urgent, direct access ultrasound scan for testicular cancer in men, and trans women and non-binary people with male reproductive organs who have unexplained or persistent testicular symptoms. [2015]
Consider a suspected cancer pathway referral for penile cancer in men, and trans women and non-binary people with male reproductive organs if they have:
a penile mass or ulcerated lesion, when a sexually transmitted infection has been excluded as a cause, or
a persistent penile lesion after treatment for a sexually transmitted infection has been completed. [2015]
Consider a suspected cancer pathway referral for penile cancer in men, and trans women and non-binary people with male reproductive organs who have unexplained or persistent symptoms affecting the foreskin or glans. [2015]
Refer people using a suspected cancer pathway referral for melanoma if they have a suspicious pigmented skin lesion with a weighted 7‑point checklist score of 3 or more. [2015]
Major features of the lesions (scoring 2 points each):
change in size
irregular shape
irregular colour.
Minor features of the lesions (scoring 1 point each):
largest diameter 7 mm or more
inflammation
oozing
change in sensation.
Refer people using a suspected cancer pathway referral if dermoscopy suggests melanoma of the skin. [2015]
Consider a suspected cancer pathway referral for melanoma in people with a pigmented or non‑pigmented skin lesion that suggests nodular melanoma. [2015]
Consider a suspected cancer pathway referral for people with a skin lesion that raises the suspicion of squamous cell carcinoma. [2015]
Consider non-urgent referral for people if they have a skin lesion that raises the suspicion of a basal cell carcinoma. (Typical features of basal cell carcinoma include: an ulcer with a raised rolled edge; prominent fine blood vessels around a lesion; or a nodule on the skin [particularly pearly or waxy nodules].) [2015]
Only consider a suspected cancer pathway referral for people with a skin lesion that raises the suspicion of a basal cell carcinoma if there is particular concern that a delay may have a significant impact, because of factors such as lesion site or size. [2015]
Follow NICE's guidance on improving outcomes for people with skin tumours including melanoma for advice on who should excise suspected basal cell carcinomas. [2015]
Consider a suspected cancer pathway referral for laryngeal cancer in people aged 45 and over with:
persistent and unexplained hoarseness, or
an unexplained lump in the neck. [2015]
Consider a suspected cancer pathway referral for oral cancer in people with either:
unexplained ulceration in the oral cavity lasting for more than 3 weeks, or
a persistent and unexplained lump in the neck. [2015]
Consider an urgent referral for assessment for possible oral cancer by a dentist in people who have either:
a lump on the lip or in the oral cavity, or
a red or red and white patch in the oral cavity consistent with erythroplakia or erythroleukoplakia. [2015]
Consider a suspected cancer pathway referral by the dentist for oral cancer in people when assessed by a dentist as having either:
a lump on the lip or in the oral cavity consistent with oral cancer, or
a red or red and white patch in the oral cavity consistent with erythroplakia or erythroleukoplakia. [2015]
Consider a suspected cancer pathway referral for thyroid cancer in people with an unexplained thyroid lump. [2015]
Consider an urgent, direct access, MRI scan of the brain (or CT scan if MRI is contraindicated) to assess for brain or central nervous system cancer in adults with progressive, sub‑acute loss of central neurological function. [2015]
Consider a very urgent referral (for an appointment within 48 hours) for suspected brain or central nervous system cancer in children and young people with newly abnormal cerebellar or other central neurological function. [2015]
Consider a very urgent full blood count to assess for leukaemia in adults with any of the following:
pallor
persistent fatigue
unexplained fever
unexplained persistent or recurrent infection
generalised lymphadenopathy
unexplained bruising
unexplained bleeding
unexplained petechiae
hepatosplenomegaly. [2015]
Refer children and young people for immediate specialist assessment for leukaemia if they have unexplained petechiae or hepatosplenomegaly. [2015]
Offer a very urgent full blood count to assess for leukaemia in children and young people with any of the following:
pallor
persistent fatigue
unexplained fever
unexplained persistent infection
generalised lymphadenopathy
persistent or unexplained bone pain
unexplained bruising
unexplained bleeding. [2015]
Offer the following to assess for myeloma in people aged 60 and over with persistent bone pain, particularly back pain, or unexplained fracture:
a full blood count, and
blood tests for:
calcium
plasma viscosity or erythrocyte sedimentation rate
paraprotein, using serum protein electrophoresis
free light chains contained in serum.
If serum free light chain testing is not available, use a Bence–Jones test to check for free light chains contained in urine. [2015, amended 2025]
Refer people using a suspected cancer pathway referral if the results of the blood tests outlined in recommendation 1.10.4 suggest myeloma. [2015, amended 2025]
Separate recommendations have been made for adults and for children and young people to reflect that there are different referral pathways. In practice, young people (aged 16 to 24) may be referred using either pathway depending on their age and local arrangements.
Consider a suspected cancer pathway referral for non‑Hodgkin lymphoma in adults presenting with unexplained lymphadenopathy or splenomegaly. When considering referral, take into account any associated symptoms, particularly fever, night sweats, shortness of breath, pruritus or weight loss. [2015]
Consider a very urgent referral (for an appointment within 48 hours) for specialist assessment for non‑Hodgkin lymphoma in children and young people presenting with unexplained lymphadenopathy or splenomegaly. When considering referral, take into account any associated symptoms, particularly fever, night sweats, shortness of breath, pruritus or weight loss. [2015]
Separate recommendations have been made for adults and for children and young people to reflect that there are different referral pathways. In practice, young people (aged 16 to 24) may be referred using either pathway depending on their age and local arrangements.
Consider a suspected cancer pathway referral for Hodgkin lymphoma in adults presenting with unexplained lymphadenopathy. When considering referral, take into account any associated symptoms, particularly fever, night sweats, shortness of breath, pruritus, weight loss or alcohol‑induced lymph node pain. [2015]
Consider a very urgent referral (for an appointment within 48 hours) for specialist assessment for Hodgkin lymphoma in children and young people presenting with unexplained lymphadenopathy. When considering referral, take into account any associated symptoms, particularly fever, night sweats, shortness of breath, pruritus or weight loss. [2015]
Separate recommendations have been made for adults and for children and young people to reflect that there are different referral pathways. In practice, young people (aged 16 to 24) may be referred using either pathway depending on their age and local arrangements.
Consider a suspected cancer pathway referral for adults if an X‑ray suggests the possibility of bone sarcoma. [2015]
Consider a very urgent referral (for an appointment within 48 hours) for specialist assessment for children and young people if an X‑ray suggests the possibility of bone sarcoma. [2015]
Consider a very urgent, direct access X‑ray to assess for bone sarcoma in children and young people with unexplained bone swelling or pain. [2015]
Consider an urgent, direct access ultrasound scan to assess for soft tissue sarcoma in adults with an unexplained lump that is increasing in size. [2015]
Consider a suspected cancer pathway referral for adults if they have ultrasound scan findings that are suggestive of soft tissue sarcoma or if ultrasound findings are uncertain and clinical concern persists. [2015]
Consider a very urgent, direct access ultrasound scan to assess for soft tissue sarcoma in children and young people with an unexplained lump that is increasing in size. [2015]
Consider a very urgent referral (for an appointment within 48 hours) for children and young people if they have ultrasound scan findings that are suggestive of soft tissue sarcoma or if ultrasound findings are uncertain and clinical concern persists. [2015]
NICE has published a guideline on babies, children and young people's experience of healthcare.
Consider a very urgent referral (for an appointment within 48 hours) for specialist assessment for neuroblastoma in children with a palpable abdominal mass or unexplained enlarged abdominal organ. [2015]
Consider referral for ophthalmological assessment using a suspected cancer pathway referral for retinoblastoma in children with an absent fundal ('red') reflex. If there is new-onset squint that occurs together with an absent fundal ('red') reflex, see the recommendation on new-onset squint with loss of fundal 'red' reflex in NICE's guideline on suspected neurological conditions. [2015]
Consider a very urgent referral (for an appointment within 48 hours) for specialist assessment for Wilms' tumour in children with any of the following:
a palpable abdominal mass
an unexplained enlarged abdominal organ
unexplained visible haematuria. [2015]
Some symptoms or symptom combinations may be features of several different cancers. For some of these symptoms, the risk for each individual cancer may be low but the total risk of cancer of any type may be higher. This section includes recommendations for these symptoms.
Take into account the insight and knowledge of parents and carers when considering making a referral for suspected cancer in a child or young person. Consider referral for children if their parent or carer has persistent concern or anxiety about the child's symptoms, even if the symptoms are most likely to have a benign cause. [2015]
For people aged 60 and over with unexplained weight loss (greater than 5% mean weight loss within a 6-month period), which is a symptom of several cancers including colorectal, gastro‑oesophageal, lung, prostate, pancreatic and urological cancer:
carry out an assessment for additional symptoms, signs or findings that may help to clarify which cancer is most likely, and
offer urgent investigation, or a suspected cancer pathway referral, or a non-specific symptoms pathway referral. [2026]
For people with unexplained appetite loss, which is a symptom of several cancers including lung, oesophageal, stomach, colorectal, pancreatic, bladder and renal cancer:
carry out an assessment for additional symptoms, signs or findings that may help to clarify which cancer is most likely, and
offer urgent investigation, or a suspected cancer pathway referral, or a non-specific symptoms pathway referral. [2015, amended 2026]
For people with deep vein thrombosis, which is associated with several cancers including urogenital, breast, colorectal and lung cancer:
carry out an assessment for additional symptoms, signs or findings that may help to clarify which cancer is most likely, and
consider urgent investigation, or a suspected cancer pathway referral, or a non-specific symptoms pathway referral. [2015, amended 2026]
For a short explanation of why the committee made the 2026 recommendation and how it might affect practice, see the rationale and impact section on unexplained weight loss as a non-site-specific symptom in adults in primary care.
Full details of the evidence and the committee's discussion are in evidence review D: unexplained weight loss as a non-site specific symptom in adults in primary care).