[Frequent anal and perianal disorders and their treatment].

Anal fissures, internal hemorrhoids and perianal thromboses are very common and frequent diseases. Diagnosis is simple even with limited experience in endoscopy. Treatment of the anal fissure consists in slow dilatation with a bougie in cases of acute fissues if the sphincter internus muscle is not highly spastic, in cases of chronic or very painful acute fissures a posterior or lateral sphincterotomy should be performed. Hemorrhoids can be treated with different methods, the optimal conservative treatment is by injection of phenol. In cases of prolapsing hemorrhoids an operation should be performed. Perianal thromboses should be opened by incision. The different methods of treatment are described.