Crohn’s disease is a type of inflammatory bowel disease (IBD) that causes inflammation in the digestive tract. Symptoms may get more severe over time.

Crohn’s disease most often affects the small intestine, but it may affect the large intestine and other tissues and organs too.

Common symptoms of Crohn’s include abdominal pain, cramping, diarrhea, weight loss, and fatigue. Symptoms may also occur in other parts of the body.

It is best for a person to let a doctor know if they develop new symptoms, their symptoms get worse, or their current treatment is not improving their symptoms.

A doctor may use an endoscope to check the inside of the person’s intestines for signs of inflammation and damage. An endoscope is a long, flexible tube with a small light and camera.

A doctor may also order blood tests, stool tests, or other tests to check for signs of inflammation or other changes in the person’s condition.

A doctor may prescribe one or more medications to help limit inflammation and manage symptoms. They may also prescribe treatment for potential complications of Crohn’s disease. Sometimes surgery may be necessary.

Click through the progression guide below to learn how Crohn’s disease may affect a person over time.