Anal fecal leakage, i.e. fecal incontinence, is mainly caused by anal fistula, anal sphincter relaxation, etc. There is no specific medicine to treat it, so there is no such thing as the best medicine for anal fecal leakage. Fecal incontinence can be caused by a variety of reasons, such as anal fistula, external injuries caused by sphincter nerve damage, sphincter muscle relaxation, etc., mainly through surgical treatment to tighten the anus, so as to avoid leakage of feces. Usually, anal fistula resection, sphincter repair, sphincter folding and sphincteroplasty and other surgical methods can be used, but also can be supplemented with anal retraction action and anal lifting action, in order to exercise the anal sphincter. It is recommended that patients seek timely medical treatment by the doctor according to the cause and condition of targeted treatment. Pay more attention to daily diet, do not eat cold, spicy and stimulating food, avoid sedentary, more exercise.