Stomach pain and fart smell after eating high protein food may be caused by gastrointestinal indigestion, intestinal inflammation and gastritis. 1. Gastrointestinal dyspepsia: patients consume a lot of high-protein food, the body’s intake is limited, which may lead to dyspepsia, abdominal bloating, abdominal pain, irregular bowel movements, fart smell and other symptoms. 2. Intestinal inflammation: usually due to the patient’s own immune function and resistance to disease reduced intestinal inflammation, while high protein food is more mixed and can not be quickly digested, there will be fever, abdominal pain, diarrhea and other symptoms, and may be farting stinky, sticky stools and other symptoms. 3. Gastritis: Gastritis may be caused by bacterial infection due to spoilage of high-protein foods, which usually results in abdominal pain, bloating, nausea, vomiting and other symptoms, thus causing fart odor. It is recommended that the patient go to the hospital for examination in a timely manner, under the guidance of the doctor symptomatic treatment, should also pay attention to the diet, moderate use of protein foods, eat more vegetables and fruits, strengthen the exercise, improve immunity.