Classification of Diarrhea
1. On the basis of duration
2 types;
Acute diarrhea
Chronic diarrhea
2. On the basis of clinical presentation
2 types;
Acute watery diarrhea
Acute bloody diarrhea
3. On the basis of physiology
5 types;
1. Secretory diarrhea
2. Osmotic diarrhea
3. Exudative diarrhea
4. Motility related
5. Inflammatory diarrhea
1. Secretory diarrhea
Increase secretion or inhibition of absorption in intestine.
For example; diarrhea caused by cholera toxin.
2. Osmotic diarrhea
When too much water drawn into bowel.
If child drinks excessive sugar or salt solution, water is drawn from body into bowel, causes osmotic diarrhea.
3. Exudative diarrhea
Presence of blood or pus in stool. Exudative diarrhea occur due to inflammatory bowel disease such as; crohn's disease or ulcerative colitis, food poisoning, infection with E. Coli.
4. Motility related diarrhea
Caused by hypermotility; rapid movement of food through intestine.
If peristalsis quickly occur through gastrointestinal tract, very less time for absorption of nutrients and water. Mainly occurs in hyperthyroidism, diabetes patients.
5. Inflammatory diarrhea
Occurs when damage to mucosal lining or brush border enzyme; decrease ability to absorb.
Caused by bacterial, viral, parasitic or autoimmune disorder; inflammatory bowel diseases.
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