If your anus hurts when you sit down, consider whether you have anal fissures. The painful discomfort in the anus occurs after prolonged constipation, dry stools, and cutting the skin mucosa around the anus when defecating. When sitting down, the wound is stimulated again and painful symptoms appear. It is recommended to keep the stool open, take a hot water bath, and take oral pain medication if necessary. When the nucleus of thrombosed external or internal hemorrhoids is prolapsed and embedded, local pain can also occur. Dark, purple lumps found around the anus, swelling around the anus, painful to touch, and painful when the lump is irritated when sitting down, require prompt medical attention. If it is more serious, surgical treatment is needed. Pain in the rectum and anus can also occur when there is inflammation around the anus or when there is diarrhea. Symptoms are gradually relieved after symptomatic drug treatment. Try to visit a regular hospital to let the doctor check.