The main reason for postpartum stool anal pain, due to the impact of perianal diseases, can be divided into the following aspects: 1, due to the impact of hemorrhoids, patients in pregnancy, are caused by their own hemorrhoids clinical symptoms aggravation, so the patient’s postpartum stool pain, often thrombosed external hemorrhoids aggravation of a manifestation, the main performance in the anus around the raised small bumps, with a clear tenderness, stool time will be 2, may be the reaction caused by perianal abscess, the patient postpartum special period is prone to fire, caused by perianal abscess occurs, mainly manifested in the patient’s anus area raised lumps, often have skin redness and swelling, the patient’s tenderness is very obvious, sometimes can not be seated. 3, anal fissure caused by the impact of the woman in childbirth, will be found in the surface of the stool of the fresh blood and will be accompanied by pain in the anus. Discomfort, the drier the stool, the more obvious the clinical symptoms, which is typical of anal fissure.