|Copyright © Nucleus Medical Media, Inc.|
- Lactose intolerance
- Celiac disease
- Intestinal parasites
- HIV/AIDS, cancer, or treatment for those diseases
- Whipple disease or other bacterial infections
- Crohns disease
Inadequate digestion due to:
- Bacterial overgrowth syndrome
- Gastric resection (removal of all or part of the stomach)
- Inadequate function of the pancreas
- Excessive production of gastric acid
- Short bowel syndrome or previous bowel resection
- Medical conditions affecting the intestine, such as celiac disease, cystic fibrosis, or Crohns disease
- Use of laxatives
- Excessive use of antibiotics
- Intestinal surgery
- Excessive use of alcohol
- Travel to countries with high incidence of intestinal parasites
- Weight loss
- Abdominal distention and bloating
- Bulky, foul-smelling stools
- Weakness and fatigue
- Swelling or fluid retention
- Muscle wasting
- Blood test for low levels of vitamins, minerals, and other nutrients
- Small bowel biopsy
- A 72-hour stool collection to test for excess fat
- Pancreatic function test
- D-Xylose absorption test checks for abnormality in intestinal absorption
- Hydrogen breath test to measures how well lactose is being digested
American College of Gastroenterology http://www.gi.org
National Organization for Rare Disorders http://www.rarediseases.org
Abdullah M, Firmansyah MA. Clinical approach and management of chronic diarrhea. Acta Med Indones. 2013;45(2):157-165.
Bacterial overgrowth syndrome. Merck Manual for Health Care Professionals website. Available at: hhttp://www.merckmanuals.com/professional/gastrointestinal%5Fdisorders/malabsorption%5Fsyndromes/bacterial%5Fovergrowth%5Fsyndrome.html. Updated November 2012. Accessed July 19, 2013.
Chronic diarrhea. EBSCO DynaMed website. Available at: https://dynamed.ebscohost.com/about/about-us. Updated November 20, 2012. Accessed July 19, 2013.
Diarrheal diseases-acute and chronic. American College of Gastroenterology website. Available at: http://patients.gi.org/topics/diarrhea-acute-and-chronic/. Updated December 2012. Accessed July 19, 2013.
Function studies: Malabsorption tests. Medical University of South Carolina website. Available at: http://www.ddc.musc.edu/ddc%5Fpub/patientInfo/tests-treatments/diagnostic/functionStudies.html. Updated February 18, 2013. Accessed July 19, 2013.
Overview of malabsorption. Merck Manual for Health Care Professionals website. Available at: http://www.merckmanuals.com/professional/gastrointestinal%5Fdisorders/malabsorption%5Fsyndromes/overview%5Fof%5Fmalabsorption.html. Updated November 2012. Accessed July 19, 2013.
- Reviewer: Daus Mahnke, MD; Brian Randall, MD
- Review Date: 07/2013 -
- Update Date: 05/11/2013 -