Diarrhea caused anal pain phenomenon, need to be triggered by the cause of diarrhea, as well as anal pain symptoms were given treatment. 1, improper diet and abdominal cold and other causes of digestive system infection, is the main cause of diarrhea. Patients can be treated by oral intestinal inflammation, while in order to prevent the phenomenon of dehydration caused by diarrhea, the need for timely intravenous saline, in order to replenish the body’s electrolytes in a timely manner, to prevent the phenomenon of electrolyte dysfunction. 2, for the phenomenon of pain in the anus should be actively treated, you can use lukewarm water to sit in the bath, but also through the potassium permanganate detergent anal wash. Can effectively relieve the anal redness, swelling and pain symptoms, to prevent the phenomenon of broken skin, but also in the anus around the application of erythromycin ointment for treatment.