Diarrhea after drinking goat’s milk is considered to be caused by lactose intolerance, quality of the food itself, allergy and other factors. 1. Lactose intolerance: the patient’s intestinal tract cannot secrete the lactase enzyme that digests lactose, which can cause lactose digestion and absorption disorders. Goat’s milk contains lactose, the proportion of which is comparable to the proportion of lactose content in cow’s milk. When lactose intolerant patients drink goat’s milk, they will experience diarrhea, bloating and abdominal pain. 2. Quality problem of the food itself: If there is a quality problem with goat’s milk itself, such as a bacterial infection, the patient will experience diarrhea after drinking it. 3. Allergy: People who are allergic to goat’s milk will experience diarrhea after drinking goat’s milk, which may also be accompanied by hives, itching and swelling of the lips and tongue. If you have diarrhea after drinking goat’s milk, it is recommended that you go to the hospital if necessary.