Bacteroids are predominant organisms in the colon, and concentrations can reachВ 10organisms per mL. The concentration of organisms rarely exceeds 10/mL in the small intestine. Lactobacilli, enterococci, facultative anaerobes, and gram-positive anaerobes are predominantly organisms in the small intestine. The proximal small intestine normally contains relatively very few bacteria due to the presence of stomach acid and the effects of peristalsis. The presence of these excess organisms, resulting in multiple intestinal symptoms, is mandatory. Small intestinal bacterial overgrowth (SIBO) is defined as the presence of excess colonic bacteria in the small intestine. Discuss interprofessional team strategies for improving care coordination and communication to improve outcomes in patients who present with small intestinal bacterial overgrowth.Outline the management options available for small intestinal bacterial overgrowth.

Review the appropriate steps to evaluate a patient with suspected small intestinal bacterial overgrowth (SIBO).Identify the risk factors and etiology of small intestinal bacterial overgrowth.

This activity reviews the evaluation and management of SIBO and explains the role of the interprofessional team in improving care for patients with this condition. When these protective mechanisms against excessive bacterial growth fail, small intestinal bacterial overgrowth (SIBO) can manifest. Gastric acid secretion and intestinal motility limit the overgrowth of bacteria in the small intestine. In contrast to the large intestine, the concentration of the bacteria in the small intestine rarely exceeds 1000 organisms/mL. Duplication for commercial use must be authorized in writing by ADAM Health Solutions.Small intestinal bacterial overgrowth (SIBO) is defined as the presence of excess colonic bacteria in the small intestine. Links to other sites are provided for information only - they do not constitute endorsements of those other sites. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. This site complies with the HONcode standard for trustworthy health information: verify here. Learn more about A.D.A.M.'s editorial policy editorial process and privacy policy. is among the first to achieve this important distinction for online health information and services. follows rigorous standards of quality and accountability. is accredited by URAC, for Health Content Provider (URAC's accreditation program is an independent audit to verify that A.D.A.M. Some cases of irritable bowel syndrome (IBS).ДЄ.D.A.M., Inc.An example is a Billroth II type of stomach removal ( gastrectomy). Surgical procedures that create a loop of small intestine where excess bacteria can grow.These sacs are much more common in the large bowel. These sacs allow too many bacteria to grow. Small bowel diverticulosis, in which small, and at times large sacs occur in the inner lining of the intestine.

Short bowel syndrome caused by surgical removal of the small intestine.

Immunodeficiency, such as AIDS or immunoglobulin deficiency.

Diseases that lead to movement problems in the small bowel, such as diabetes and scleroderma.

Crohn disease is one of these conditions.

Complications of diseases or surgery that create pouches or blockages in the small intestine.

This can make it even harder for the body to absorb nutrients.Д¬onditions that can lead to overgrowth of bacteria in the small intestine include: The breakdown of nutrients by the excess bacteria can also damage the lining of the small intestine. As a result, a person may become malnourished. Excess bacteria in the small intestine may use up the nutrients needed by the body. Most of the time, unlike the large intestine, the small intestine does not have a large number of bacteria.

Bacterial overgrowth treatment