The reason for weight loss after recovery from pancreatitis is that during the process of treatment, the intake of energy is not enough, the function of the pancreas has not been fully restored to the digestive capacity of the weak, but also does not exclude pathologic factors, and it is necessary to improve the relevant examinations in time to make a clear diagnosis. 1. In the course of pancreatitis treatment, the basic treatment requires fasting and water fasting, the patient can not effectively intake of sufficient nutrients, in the recovery of pancreatitis, may be affected by the short-term fasting and water fasting, the patient’s appetite is poor, the digestive ability is also reduced, which will lead to weight loss. 2. Pancreatitis is the pancreas’ own inflammatory reaction, which can damage its own tissues through proteases, so the function of the pancreas does not return to the normal level during the recovery period, resulting in weakened digestive ability. 3. Weight loss may also be due to other primary diseases, such as gastric primary diseases, such as gastritis, etc., which require further improvement of the examination. During the recovery period of pancreatitis, it is necessary to strengthen the nutritional intake, regular review, and active treatment under the guidance of the doctor.