Proximal jejunum uniform thickening sometimes left pain may be the intestinal tract appeared to be infected with acute and chronic inflammation, patients should be based on their own symptoms to take treatment measures. Proximal jejunum thickening sometimes left pain may be inflammation, suffering from acute and chronic inflammation of the small intestine manifestation, the patient should go to the hospital in a timely manner to treat the disease, usually preferred conservative treatment. Enteritis is caused by viruses, fungi and parasites and other inflammatory manifestations, after the doctor’s guidance can be given acid suppression, anti-infection, rehydration, inhibition of intestinal secretions and other treatments, if necessary, parenteral nutrition therapy, the purpose is to make the intestinal tract get enough rest. Patients should strictly control the diet, reduce the stimulation of food on the intestinal wall, do not eat some spicy stimulating food, it is better to eat some light food.