You should not drink water 2 hours before the gastroscopy.
Gastroscopy usually requires the patient to have an empty stomach because after eating or drinking, food or liquid will accumulate in the stomach, which may induce nausea, vomiting and other symptoms when performing gastroscopy, and may also cause vomit to be mistakenly inhaled into the lungs or trachea, leading to choking or even choking.
Therefore, do not drink water for 4 hours and do not eat any food for 6 to 8 hours before the gastroscopy to avoid abnormalities during the gastroscopy. Usually, patients are able to eat some liquid food after 2 hours after simple gastroscopy, and can resume normal diet after 24 hours.
If the patient’s gastroscopy results appear abnormal, it is recommended to go to a regular hospital in time, after clarifying the cause of the disease, under the guidance of the doctor for targeted treatment or therapy.