Can not drink water within 6 hours after general anesthesia surgery, is due to general anesthesia surgery after anesthesia is not fully metabolized, resulting in respiration, muscle and other autonomous functions have not been restored, drinking water may cause indigestion, diaphragmatic spasm and other symptoms of discomfort. 1. indigestion: generally due to general anesthesia will inhibit gastrointestinal peristalsis, causing indigestion; indigestion may appear anorexia, nausea, vomiting, heartburn and other symptoms, can be treated with pancreatic enzyme enteric coated tablets and other drugs under the guidance of the doctor. 2. Diaphragmatic spasm: it is usually caused by drinking too much water too soon after the operation, which leads to hiccups and then causes diaphragmatic spasm; diaphragmatic spasm will usually appear continuous hiccups, loss of appetite, vomiting and other symptoms, and it can be treated with medicines such as mosapride citrate tablets under the guidance of doctors. If you drink water within 6 hours after surgery, you should pay attention to rest, avoid exertion, appropriate exercise, and seek medical attention if necessary.