Small intestinal bacterial overgrowth

Updated: 2024-02-15

Description

A condition in which high numbers of bacteria grow in the small intestine.

Overview

In small intestinal bacterial overgrowth, the bacteria consume nutrients typically absorbed into the body by the small intestine. This may cause malnourishment. It can be caused by complications of surgery, structural problems with the intestine or certain conditions, including Crohn's disease.

Symptoms

Symptoms include belly bloating, pain, diarrhea and weight loss.

Treatments

Treatment may include antibiotics and nutritional support, including supplements and dietary changes.