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Crohn's Disease Symptoms and Complications

​​​​​​​​​​Crohn’s disease is an inflammatory bowel disease (IBD) typically located in the small intestine and colon. Inflammation caused by Crohn’s is not always visually present. Those diagnosed with this disease will go through periods of flare-ups (when symptoms are present) and remission (when symptoms are absent).

Crohn’s Disease Symptoms

Symptoms of Crohn’s disease are only present when the IBD is active. Often they come on gradually, but it is possible for symptoms to develop suddenly. The severity and variety of symptoms are different for each person, but can include any of the following:

  • Diarrhea
  • Nausea
  • Fatigue
  • Fever
  • Mouth sores
  • Weight loss
  • Reduced appetite
  • Abdominal pain/cramping
  • Blood in the stool
  • Anal pain/drainage

Less common symptoms include:

  • Red eyes
  • Eye pain
  • Red bumps or blisters on skin
  • Pus or fecal matter seeping through skin
  • Joint swelling
  • Liver/bile duct inflammation

Crohn’s Disease Complications

In addition to its direct symptoms, Crohn’s disease has been known to cause other health complications.

Because Crohn’s affects an individual’s ability to ​digest and absorb food, people with Crohn’s may be malnourished or develop anemia or vitamin B12 deficiencies.

The chronic inflammation caused by Crohn’s disease has been known to cause ulcers and intestinal bleeding in the digestive tract. In extreme cases, these ulcers can expand to fistulas, holes in the intestinal wall that create abnormal connections between organs.

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