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Lactose intolerance - Symptom

Alternative Names

Lactase deficiency; Milk intolerance; Disaccharidase deficiency; Dairy product intolerance

Symptoms:

Symptoms often occur after you eat or drink milk products, and are often relieved by not eating or drinking milk products. Large doses of milk products may cause worse symptoms.

Signs and tests:

Enteroscopy
Lactose-hydrogen breath test
Lactose tolerance test
Test for stool-reducing substances

Digestive system organs

Reviewed last on: 8/22/2008
Christian Stone, MD, Division of Gastroenterology, Washington University in St. Louis School of Medicine, St. Louis, MO. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

References

Information from your family doctor. Lactose intolerance: what you should know. Am Fam Physician. 2006;74:1927-1928.

Hogenauer C, Hammer HF. Maldigestion and Malabsorption. In: Feldman M, Friedman LS, Sleisenger MH, eds. Sleisenger & Fordtran's Gastrointestinal and Liver Disease. 8th ed. Philadelphia, Pa: Saunders Elsevier; 2006: chap98.

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