[Value of the dilatation of the anal sphincter]

Anal sphincter dilatation with forefinger and middle fingers of both hands for a two-minute period under strong pressure results in a measurable tonus-decrease of the sphincter ani over a period of 2-3 weeks. This tonus-decrease is of therapeutic advantage in numerous diseases, particularly in those of the anal area. At the same time, the stretching may well be used to protect anastomoses in the colon or to dilate the operative access in transanal operations. Complications arising from the stretching described are insignificant.