Why does drinking milk give you a stomach ache

Drinking milk will stomach pain may be because the milk is cooler, lactose intolerance, milk has been spoiled and so on.
1. Milk is cooler: milk temperature is cooler, after entering the stomach, the gastric mucosa is stimulated by cold, which may cause stomach cramps and contractions, manifested as abdominal pain.
2. Lactose intolerance: Lactose intolerance is the body lacks lactase enzyme, can not digest lactose, lactose is broken down into lactic acid by other flora, lactic acid stimulates the intestinal wall, accelerating intestinal peristalsis, causing abdominal pain and diarrhea.
3. Milk has been spoiled: milk is not fresh, is infected by bacteria, after eating milk, bacteria will lead to intestinal mucosal inflammation, intestinal absorption function is weakened, more water is left in the feces, diarrhea.
Drinking milk will stomach pain may also have other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.