Melanosis coli

Melanosis coli is dark pigmentation of the inner wall of the colon. It is also known as pseudomelanosis coli because the pigmentation is not due to melatonin. It is usually identified during colonoscopy. It is usually caused by prolonged use of laxatives like Senna....

Hemorrhoids

Hemorrhoids are swollen veins around the rectum. Hemorrhoids are classified as internal, external or mixed. Symptoms of hemorrhoids include itching, anal pain, anal pressure, and rectal bleeding. Hemorrhoids can be conservatively treated by avoiding constipation, sitz...

Diverticulosis

Diverticulosis is the presence of diverticula. A diverticulum is a pouch-like indentation on the wall of colon. Diverticulosis affects both men and women. It is more common in developed countries. The risk of colon diverticulosis increases with age. Diverticulosis is...

Crohn’s disease

Crohn’s disease is a form of inflammatory bowel disease. It is different from ulcerative colitis, another form of inflammatory bowel disease. Crohn’s disease can affect any part of the gastrointestinal tract, from the mouth to the anus whereas ulcerative colitis only...

Colorectal Cancer

Colorectal cancer is cancer that affects the colon or rectum. It is the 2nd leading cause of cancer death in United States. Colorectal cancer is caused by mutations in cell growth and proliferation. These mutations may be due to genetic or environmental factors....