Anal pain will bleed if you exert yourself, it may be anal fissure or hemorrhoids. 1. anal fissure: may be due to constipation, stool dryness caused by abnormal stool, etc., in the process of defecation caused by the anal canal skin fissure, at this time there will be anal tear-like severe pain and blood in the stool, blood in the stool of a small amount of bright red, the pain will continue for a short period of time after the stool, and gradually relieved. You can use conservative medication such as hemorrhoid cream, erythromycin ointment, lactulose, etc., while improving the diet to improve the symptoms of constipation and promote the healing of the fissure. 2. hemorrhoids: may be internal hemorrhoids and external hemorrhoids are present in the mixed hemorrhoids, the external hemorrhoids part of the thrombosis, thrombosed hemorrhoidal nucleus congestion and edema, by the external pulling, friction, etc. will appear stool blood and local swelling and pain. Generally the first conservative treatment, with musk hemorrhoid cream, anus tai suppositories and 1:5000 potassium permanganate solution sitz baths and so on to alleviate the symptoms, standardized conservative treatment is ineffective and then consider surgical treatment. Patients should go to the anorectal department of the regular hospital in time, through the anal finger test, anal examination and other tests to clarify the diagnosis, and then give symptomatic and reasonable treatment, and actively cooperate with the implementation of the doctor’s orders.