How many days can you have a normal diet after gastroscopy to cut 0.3 polyps is related to the patient’s condition, the procedure and other factors. Usually it takes about 1~2 days, serious patients may also need about a week or even longer. 1. If the patient polyps using laser, high-frequency electrocution and other ways of treatment, the general need to fast for 6 to 8 hours after surgery, after which you can gradually start to drink some warm water, if there is no abdominal pain and other obvious discomfort, can be given to a liquid diet, and then gradually transitioned to a semi-liquid diet, and finally return to a normal diet, the process will take about 1 to 2 days. 2. If the patient undergoes polypectomy by submucosal dissection, he or she needs to fast for 48 to 72 hours after the operation, and then gradually transition from a liquid diet to a semi-liquid diet and finally resume a normal diet under the premise of no obvious discomfort. It will take about a week or more to resume normal diet. In addition, patients should also pay attention to avoid eating cold, spicy and other stimulating foods and barbecue, deep-fried and other indigestible foods, quit smoking and drinking, avoid drinking strong tea, strong coffee, etc., so as not to irritate the gastric mucosa, affecting the recovery after surgery. Gastroscopy polyp removal patients, should strictly follow the instructions of the doctor, when to start eating should be reasonable under the guidance of the doctor, do not eat without authorization. If there is any discomfort, it is recommended to consult a doctor in time and actively receive treatment.