Diarrhea is a condition in which we frequently pass loose, watery stools. Let’s see some causes of diarrhea. Firstly, during digestion bile acid produced by the liver is absorbed by the small intestine. However, in a condition called bile acid malabsorption, the bile is not absorbed. Hence, the bile enters the large intestine and begins to irritate its lining. This stimulates the re-lease of water and salts, thus producing watery stool.
Secondly, the function of our large intestine is to contract and push the undigested food, and absorb excess water. However, in a disorder called irritable bowel syndrome, the large intestine doesn’t contract normally. It pushes the food too fast, affecting the absorption of water, thus leading to diarrhea.
Lastly, a harmful parasite called giardia also interrupts the process of absorption of water in our intestines, causing diarrhea.
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