Haemorrhoids , or piles, are small cushions composed of blood vessels below the  lining of the bowel situated in the anal canal. They can become symptomatic, causing bleeding or dropping down outside the anus (prolapsing haemorrhoids). Sometimes they may  thrombose and become very painful. Exeter Specialist Clinics offer diagnosis to ensure that symptoms attributed to piles are not due to other causes, and also offer a range of haemorrhoid treatments. We offer HALO and THD, new treatments that are less painful than conventional haemorrhoidectomy.