3.1
Radiofrequency treatment for haemorrhoids is usually done under local anaesthetic, with or without sedation. A lubricated proctoscope is inserted into the anus to allow good visualisation of the anal canal and to expose the haemorrhoids. Local anaesthetic is injected into tissue surrounding the haemorrhoid. Details of the procedure vary according to the specific device being used. A specially designed probe connected to a radiofrequency generator is inserted into the haemorrhoid, or a ball electrode is rolled over the surface of the haemorrhoid. The tissue within the haemorrhoid heats up and the haemorrhoid shrinks. The haemorrhoids may be treated in several sessions, each taking up to 20 minutes.