What are the complications of Crohns disease (CD)?
In some people with CD, swelling and scar tissue thicken the bowel wall. This can close off the intestines causing an intestinal blockage. Intestinal blockages cause constipation, bloating, and other problems. Sometimes the ulcers of CD can break through the walls of the intestine. They then create tunnels or fistulas between the involved intestine and another part of the intestine or nearby organs. Fistulas usually occur in other parts of the intestines or the bladder, vagina, or skin. They are common around the anus and rectum. Mucus, pus, or stool can drain from infected fistulas in this area. Many people with CD also suffer from nutritional problems. Their damaged digestive systems may not absorb enough proteins, calories, vitamins or minerals. Osteoporosis also is a threat because CD can prevent the body from absorbing enough calcium and vitamin D. Medicines used to treat CD called corticosteroids also increase the risk of osteoporosis. People with CD who do not include enough mil
