Hello, The lining [mucus membrane] of the rectum is very thin, tears easily, does not heal fast and therefore is vulnerable to infections. Also, the tears can enlarge to a fissure or a crack. These are painful and slow to heal. There is also a possibility that a fistula could open up, allowing feces to re-route into the abdominal cavity. One may lose control over the anal sphincter causing continuous involuntary leakage of fecal matter. There is also the increased risk of hemorrhoids, which are quite uncomfortable. Rectal prolapse wherein the walls of the rectum protrude through the anus and hence become visible outside the body is another surgical emergency that is seen resulting out of anal intercourse. Skin irritations or proctitis may cause discharge from the anus. Gonorrhea or sexually transmitted disease may be the one of the reason. Please consult your physician, he/she will examine and treat you accordingly. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Penchila Prasad Kandikattu