The only way to cure ulcerative colitis completely is to undergo surgery to remove the entire diseased colon and rectum lining. This will put an end to all the symptoms of ulcerative colitis like diarrhea, abdominal cramping, and increased bowel movements. However, this procedure is typically only done in severe cases where the disease has progressed past a mild level. The majority of ulcerative colitis patients use natural remedies or medication to manage their symptoms without opting for surgery.