Patients with bowel cancer can drink milk, which mainly consists of milk protein and also includes some water. After drinking milk, patients will not cause tumor progression, metastasis or recurrence, etc. Also, patients will not experience diarrhea and abdominal pain after drinking milk, but the decision should be made according to patients’ own situation. If patients do not drink milk, or have diarrhea after drinking milk, it is not recommended to drink milk after intestinal cancer or intestinal cancer surgery, because many patients are lactose intolerant, and drinking milk will aggravate diarrhea and the number of bowel movements, which may lead to abdominal pain, and may even lead to tumor surface rupture and bleeding, and may aggravate patients’ condition.