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Diarrhea Causes

Infections
Diarrhea caused by an infection may result from:
 
  • Parasites, such as Cryptosporidium parvum, Cyclospora cayetanensis, Entamoeba histolytica, Giardia lamblia, and microsporidia
 
  • Bacteria, such as Campylobacter, Clostridium difficile, Escherichia coli, Listeria monocytogenes, Salmonella enteritidis, and Shigella
 
  • Viral infections, such as HIV, rotavirus, and Norwalk virus.
 
Inflammation
A number of conditions that occur within the intestines can cause inflammation. This inflammation can result in diarrhea. Some of these conditions include:
 
Medicines
Medicines that can cause chronic diarrhea include:
 
Functional Bowel Disorders
Functional bowel disorders that can cause chronic diarrhea include:
 
Certain Tumors
A number of benign (noncancerous) or malignant (cancerous) growths can cause chronic diarrhea. These include:
 
Malabsorption Conditions
Several problems in which the intestines do not absorb certain nutrients very well can cause chronic diarrhea. These include:
 
Some people are unable to digest some component of food, such as lactose, the sugar found in milk. Lactose intolerance and other food intolerances will often lead to diarrhea.

Diarrhea Information

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