The anal perineal area is moist and unclean mostly due to anal incontinence resulting in residual fecal material. There are many causes of fecal incontinence, 1 or more causes can cause fecal incontinence fecal incontinence classification methods, can be classified according to the degree of incontinence, nature, rectal sensation and etiology, but also Chinese medicine identification typology, but there is no uniform classification standards, the etiology of classification are as follows: 1, the change in stool traits: common in irritable bowel syndrome, inflammatory bowel disease, infectious diarrhea, abuse of laxatives, absorption malnutrition syndrome, short bowel syndrome, and radiation enteritis. 2, intestinal volume or compliance abnormalities: common in inflammatory bowel disease, rectal volume deficiency, rectal ischemia, collagen vascular disease, rectal tumors, extramural rectal compression. 3, abnormal rectal sensation: common in neurological lesions, overflow incontinence. 4, abnormal sphincter or pelvic floor function: common in anatomical defect of sphincter, loss of innervation of pelvic floor muscle, congenital abnormality. The causes of fecal incontinence in the elderly may be due to fecal mass impaction, abnormal rectal sensation, reduced anal sphincter pressure, neuromuscular dysfunction, dementia, medical origin, etc. Senile fecal incontinence or anal incontinence is defined as involuntary control of bowel movements and exhaustion at least 2 or more times a day. It is a clinical symptom with a variety of pathophysiological basis caused by a variety of causes in the elderly, the incidence of about 1% of elderly inpatients are more common in general more women than men. Fecal incontinence is common in the elderly and mild fecal incontinence is often not taken seriously by patients and physicians with little reported exact incidence.