If you see bleeding, dripping blood or fresh blood in the stool, most of them are caused by hemorrhoids; if the bleeding is bright red with severe anal pain, it is usually caused by anal fissure; if there is blood in the stool, with dark red blood or dark stool, it is caused by gastrointestinal bleeding; if there is a swelling coming out of the anus during defecation, accompanied by anal moistness or mucus, most of them are caused by prolapsed internal hemorrhoids or prolapsed rectal mucosa; if there is a lump in the anus, with pain If there is a lump in the anus, painful, dark and round, it may be a thrombosed external hemorrhoid; if there is a lump in the anus with local fever and pain, it is a symptom of perianal abscess; if there is a strip in the anus on palpation and a small amount of pus coming out of the ulcer, it is a manifestation of anal fistula; if the stool is unformed, irregular and accompanied by pus and blood, consider the possibility of tumor, go to the hospital for examination as soon as possible.