Effect of Anorectal Biofeedback on Encopresis in School Aged Girls After Sexual Assault

Females who have been sexually abused anally, have a disturbed anorectal motility. They have an increased resting pressure at the lower part of the anal canal. When their rectum is suddenly distended, they tend not to have an initially increased pressure in the anal canal, and the recto-anal inhibitory reflex is markedly decreased amplitude which is caused by reflex contraction of the pelvic floor during the relaxation of the internal anal sphincter.