What are the complications of Crohn’s disease?

What are the complications of Crohn’s disease?

Crohn’s disease can lead to serious complications, including:

• Abscesses: Infected pus-filled pockets form in the digestive tract or abdomen.
• Anal fissures: Small tears in the anus (anal fissures) can cause pain, itching and bleeding.
• Bowel obstructions: Scar tissue from inflammation, fistulas or a narrowed intestine can block the bowel partially or completely. Waste matter and gases build up. A blockage in the small bowel or large bowel requires surgery.
• Colon cancer: Crohn’s disease in the large intestine increases the risk of colon cancer.
• Fistulas: IBD can cause abnormal tunnel-like openings, called fistulas, to form in the intestinal walls. These fistulas sometimes become infected.
• Malnutrition: Chronic diarrhea can make it hard for your body to absorb nutrients. One common problem in people with Crohn’s disease is a lack of iron. Too little iron can lead to anemia (low red blood cell count) when your organs can’t get enough oxygen.
• Ulcers: Open sores called ulcers can form in your mouth, stomach or rectum.