People with bad stomachs are generally not recommended to drink pure milk for a long time, which may aggravate the burden on the stomach and intestines. Pure milk contains protein, vitamins, calcium and other nutrients, moderate drinking, can promote gastrointestinal peristalsis, to help recovery. Excessive consumption of pure milk may aggravate the burden on the stomach and intestines and damage the gastric mucosa, leading to further aggravation of the condition. Bad stomach may be due to improper diet, long-term use of antibiotics, Helicobacter pylori infection and other factors, it is recommended that patients seek medical examination in a timely manner to identify the cause of the disease, and under the guidance of the doctor to take the right treatment. People with weak stomachs should eat a diet rich in vitamins and proteins, and avoid foods that are too spicy and stimulating.