What are the five types of Crohn’s disease?

Crohn's disease is classified based on the location and severity of the inflammation within the digestive tract. The five main types of Crohn's disease are:

1. Ileocolitis: This is the most common form of Crohn's disease, and it affects the ileum (the last part of the small intestine) and the colon. Symptoms include abdominal pain, diarrhea, and weight loss.
2. Ileitis: This type of Crohn's disease affects the ileum alone, and symptoms include abdominal pain, diarrhea, and weight loss.
3. Gastroduodenal Crohn's disease: This type affects the stomach and the first part of the small intestine (duodenum). Symptoms include abdominal pain, nausea, vomiting and weight loss
4. Jejunoileitis: This type of Crohn's disease affects the upper part of the small intestine (jejunum) and causes symptoms such as abdominal pain, diarrhea, and weight loss.
5. Crohn's colitis: This type affects the colon alone and causes symptoms such as abdominal pain, diarrhea, and rectal bleeding.

It is important to note that these classifications are not always clear cut and that some people may have symptoms that overlap across several types of Crohn's disease. Additionally, the location and severity of the disease may change over time.

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