SIBO and its connections with other diseases: understand the relationships and impacts on treatment

The link between SIBO (small intestinal bacterial overgrowth) and other chronic diseases is increasingly recognized by modern medicine. SIBO not only causes gastrointestinal symptoms such as bloating, abdominal pain, gas, and diarrhea, but is also strongly associated with conditions such as irritable bowel syndrome (IBS), celiac disease, inflammatory bowel disease (IBD), and diabetes. These connections influence both diagnosis and treatment, requiring a multidisciplinary approach to patient management.

IBS is one of the conditions most frequently associated with SIBO. Studies show that up to 51.7% of IBS patients have SIBO, compared to 16.7% of the healthy population. The presence of SIBO in these patients can aggravate symptoms such as abdominal pain, bloating, diarrhea, and constipation, as well as increase the severity of gastrointestinal symptoms. Eradicating SIBO can even significantly improve the clinical picture of IBS.

Patients with celiac disease, especially those who do not fully respond to a gluten-free diet, are at higher risk of developing SIBO. Bacterial overgrowth can contribute to persistent symptoms, nutrient malabsorption, and vitamin deficiencies, even after gluten elimination. The presence of SIBO in these cases may be one of the factors responsible for the poor clinical response to the traditional celiac diet.