The anal swelling and pain to defecate and can not come out is constipation, rectal mucosal prolapse, perianal abscess, analysis is as follows: First, if constipation, you can use surgical treatment, if only a momentary constipation, can be relieved by changing the diet or eat laxative drugs, serious before considering surgery. Secondly, if it is rectal mucosal prolapse, which has a higher incidence in older women or in patients with long-term constipation, surgery is recommended. Constipation can also be treated with Chinese herbal medicine or abdominal massage to promote bowel movement. Thirdly, perianal abscesses can be painful and persistent, and there may be itching of the skin or the phenomenon of pus, and the treatment for perianal abscesses is also surgery, which is faster to heal after surgery.