Which of the following is a major category of chronic diarrhea differential?

Which of the following is a major category of chronic diarrhea differential?

• A. Parasitism
• B. Ulcerative colitis
• C. Irritable bowel syndrome
• D. Gallbladder disease

Answer: (A)

Chronic diarrhea has several broad etiologic categories, and parasitism sits in the infectious group as a major cause. Parasitic infections such as Giardia, Entamoeba histolytica, and Cryptosporidium can produce long-lasting diarrhea with malabsorption and weight loss, making them a key consideration when the diarrhea persists for weeks to months or in people with relevant exposure or immune compromise. The other options are specific conditions rather than broad categories: ulcerative colitis is a single inflammatory bowel disease; irritable bowel syndrome is a functional disorder without an organic pathology; and gallbladder disease can affect digestion but isn’t a primary category used to classify chronic diarrhea etiologies.

Chronic diarrhea has several broad etiologic categories, and parasitism sits in the infectious group as a major cause. Parasitic infections such as Giardia, Entamoeba histolytica, and Cryptosporidium can produce long-lasting diarrhea with malabsorption and weight loss, making them a key consideration when the diarrhea persists for weeks to months or in people with relevant exposure or immune compromise. The other options are specific conditions rather than broad categories: ulcerative colitis is a single inflammatory bowel disease; irritable bowel syndrome is a functional disorder without an organic pathology; and gallbladder disease can affect digestion but isn’t a primary category used to classify chronic diarrhea etiologies.