Urine galactose positive indicates that the body lactose intolerance, can not digest foods containing lactose such as dairy products, after eating can appear diarrhea, abdominal pain, etc., is the need for active treatment. Urine galactose positive refers to lactose intolerance, can be seen in congenital lactase gene deficiency, drug damage, acquired infection, etc., the body lacks lactose in the intestinal tract can not be digested, absorbed, manifested as abdominal distension, intestinal colic, diarrhea, vomiting, etc., after eating lactose products, but also can be manifested as constipation. Urinary galactose positive treatment can use lactase capsules, bifidobacteria and so on. Daily life to reduce the intake of lactose, reduce diarrhea on the mucosa of the small intestine caused by the damage. It is recommended to consult a doctor in time and standardize the treatment under the doctor’s guidance.