Microscopic colitis causes inflammation of the large intestine (colon) that leads to ongoing watery diarrhea.
Microscopic colitis is characterized by an inflammation (swelling) of the colon (large intestine) that leads to chronic (ongoing) watery diarrhea. The condition is more common in females than it is in males.
Many individuals who have microscopic colitis also have an autoimmune condition, such as:
There are two types of microscopic colitis:
Collagenous colitis occurs when a thick layer of protein (collagen) forms in the colon tissue.
Lymphocytic colitis occurs when white blood cells (lymphocytes) accumulate in the colon tissue.
The signs and symptoms of microscopic colitis may come and go regularly, and may include:
The causes of microscopic colitis are varied, and include:
American Board of Pediatrics/Gastroenterology