[Hemorrhoids. Review].

Correct definition of haemorrhoidal disease allows the estimation of the incidence and the therapeutic choices. The term "haemorrhoidal disease" should be used specifically for symptoms secondary to abnormalities of the intern haemorrhoidal plexus. The classification of severity is useful but difficult to apply to individual cases. The aetiopathogenesis remains unclear. Many arguments are in favour of a progressive degeneration of the fibromuscular structure of the internal haemorrhoidal plexus responsible for his prolapse in the anal canal. Most patients suffering from haemorrhoids are relieved by simple dietary advice. Moderate prolapsing haemorrhoids are significantly improved by rubber band ligation. Surgical haemorrhoidectomy remains the procedure of choice in patients with advanced prolapsing haemorrhoids.