In order to diagnose this, you need to do a rectal and pelvic examination. You may need to do an S-advisory colon and colon endoscopy to get a closer look. You may need to do a resection, or a drain, or a colectomy, or a bowel endoscopy, or some other sub-strate treatment, such as a bowel repair procedure, to improve the healing process.
Hi, doctor, there's discomfort and pain around the anus, and for a while the area is getting red.