If there is pain in the anus, it is mainly considered that rectal related diseases may cause it. Although patients with internal hemorrhoids generally do not feel pain, if there is local infection and inflammation, it may also show obvious pain at this time. Therefore, it is necessary to use potassium permanganate warm water hip bath to promote the absorption of inflammation, Symptoms can be better improved. In addition, patients with rectal malignancies may also experience pain in this area, so we should pay attention to it, improve colonoscopy and other related examinations as soon as possible, and identify the cause. If it is a rectal malignant tumor, it can be detected, diagnosed, treated and operated as early as possible, which can improve the prognosis of patients.