Eosinophilic gastroenteritis (EGE) (related)

Eosinophilic gastroenteritis is an immune-driven condition in which eosinophils build up in the stomach, small intestine, or both, causing inflammation. Like eosinophilic esophagitis, it is understood as an allergic-type immune response, often connected to food sensitivities, and is considered immune-mediated rather than classically autoimmune.

A 2015 analysis of a large United States insurance claims database estimated the standardized prevalence of eosinophilic gastroenteritis at roughly 8 per 100,000 people, making it genuinely rare. The same research found it was more common in young children than adults and identified a high rate of coexisting allergic conditions, close to half of those affected. Symptoms and severity depend on which layer and region of the digestive tract is involved.

Common signs

Abdominal pain, nausea, vomiting, early fullness, bloating, and diarrhea are common. Depending on the depth and location of involvement, some people develop poor nutrient absorption, weight loss, protein loss, or fluid in the abdomen. Symptoms can come and go.

This is a plain-language summary for orientation, not a diagnosis. Mechanisms are described as current understanding, not settled fact. Work with your own clinician for your care.