👉 Gastroduodenitis is a type of inflammation that occurs in the small intestine. It can be caused by various factors, such as infection or damage to the lining of the intestine, and it usually affects the lower part of the digestive tract. The symptoms of gastroduodenitis include abdominal pain, nausea, vomiting, diarrhea, and fever. Treatment for gastroduodenitis typically involves antibiotics to prevent further complications and may also involve surgery if the condition is severe enough.