Colostomy surgery is an operation to divert 1 or both ends of the colon through an opening in the abdomen (NHS, 2020). A bag (also known as a pouch or appliance) can be placed over the stoma to collect bodily waste (faeces). A colostomy may be needed during the treatment of conditions such as bowel cancer, anal cancer, vaginal or cervical cancer, ovarian cancer, Crohn’s disease, diverticular disease, incontinence endometriosis, Hirschsprung’s disease, birth defects or trauma. Colostomy surgery may be temporary and can be reversed, or it can be permanent. It is estimated that there are over 200,000 people with a stoma in the UK (Colostomy UK, 2024). Open Prescribing reports that 1-piece closed bags were prescribed on 428,464 prescriptions in England between February 2023 to January 2024, costing the NHS £92 million. Bags for people with a colostomy are made up of a baseplate that attaches to the skin around the stoma, and a bag that collects bodily waste (faeces). Typically, people with a colostomy use 1-piece closed bags. The baseplate of 1-piece closed bags can be flat, convex or concave to suit different body shapes and can be made of different materials. Baseplates may have different types of adhesives and come in different shapes and sizes to try and improve durability, stop leakage and reduce creasing around the stoma opening. Bags also come in different sizes, colours and may have additional innovative features designed to suit specific user needs. NICE is scoping for an assessment on 1-piece closed bags as part of a new process called late-stage assessment (LSA). LSA aims to assess technologies that are in widespread or established use in the NHS. Over time, technologies often undergo continuous or incremental innovation and adaptation. LSA will assess if the value added by incremental innovation justifies any price variation.
Status In progress
Technology type Device
Decision Selected
Reason for decision Anticipate the topic will be of importance to patients, carers, professionals, commissioners and the health of the public to ensure clinical benefit is realised, inequalities in use addressed, and help them make the best use of NHS resources

Email enquiries


Key events during the development of the guidance:

Date Update
10 June 2024 Final Assessment Protocol Published
23 April 2024 Scope published
22 April 2024 The revised timeline for the Late stage assessment will be published on the webpage in due course
05 April 2024 Scoping workshop
26 February 2024 In progress. In Development
13 February 2024 Awaiting development. Status change linked to Topic Selection Decision being set to Selected