2 doctors weighed in:
Does diarrhea occur in your small or/and large intestine?
2 doctors weighed in

Dr. Charles Cattano
Internal Medicine - Gastroenterology
1 doctor agrees
In brief: Sites of diarrhea
Both! doctors often distinguish causes of diarrhea as "secretory" or "osmotic", into which categories may fit inflammatory, ischemic, infectious, functional, malabsorption/maldigestion.
Any of these problems can be primarily small or large intestinal. A healthy, normally-motile colon can absorb up to a gallon of fluid a day, and a healthy, normally-motile small intestine can absorb twice that.

In brief: Sites of diarrhea
Both! doctors often distinguish causes of diarrhea as "secretory" or "osmotic", into which categories may fit inflammatory, ischemic, infectious, functional, malabsorption/maldigestion.
Any of these problems can be primarily small or large intestinal. A healthy, normally-motile colon can absorb up to a gallon of fluid a day, and a healthy, normally-motile small intestine can absorb twice that.
Dr. Charles Cattano
Dr. Charles Cattano
Thank
Get help from a real doctor now
Dr. Vicken Poochikian
Board Certified, Internal Medicine
38 years in practice
2M people helped
Continue
108,000 doctors available
Read more answers from doctors