Brazil
A 17-year-old female asked:
My brother since he was a child has diarrhea, and now he is 20 years old and the diarrhea didn't stop. what can it be?
2 doctor answers • 3 doctors weighed in

Dr. Oscar Novickanswered
Pediatrics 60 years experience
Diarrhea: Your brother may have a food intolerance in the form of lactose, fructose or sucrose intolerance. He needs a workup from a gastroenterologist.
Created for people with ongoing healthcare needs but benefits everyone.
4.1k viewsReviewed >2 years ago

Dr. Charles Maletzanswered
Family Medicine 41 years experience
Malabsorption: He may have a life-long parasitic infection or possibly a malabsorption condition . An example of the latter would be lactose intolerance where the inability to absorb the sugar lactose , present in all diary products will produce chronic , life-long diarrhea. His stool could easily be tested for both of these.
Created for people with ongoing healthcare needs but benefits everyone.
4.1k viewsAnswered >2 years ago
Last updated May 17, 2014
People also asked
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits - just $44!
50% off with $19/month membership
Disclaimer:
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.