How long it takes to drink water after gastric polypectomy depends on the patient’s specific situation, if endoscopic biopsy clamping is performed usually after 6~8 hours you can drink water, if endoscopic mucosal resection or stripping needs to drink water after 12~24 hours, the specific situation is decided by the doctor. After performing gastroscopic polypectomy, it is recommended to fast for food and water for a period of time after the operation to help the gastrointestinal tract recover after the operation. Fasting and water fasting time specifics are decided by the doctor, in general, argon gas electrocautery, endoscopic biopsy forceps surgery after the general 6~8 hours can drink water, if the endoscopic mucosal resection or stripping need to be in 12~24 hours before drinking water. Diet should start from a liquid diet gradually transition to a normal diet, and should also focus on eating a light diet, avoid eating spicy stimulating, indigestible food. If you do not understand how long you can eat and drink after gastric polypectomy, consult a medical professional to decide.