After painless gastroscopy, you need to take more rest and pay attention to your diet, and if you have nausea and other symptoms, you need to go to the hospital in time. As anesthesia drugs will be used in the process of painless gastroscopy, so you need to rest more, try not to drive or work at heights within 24 hours; patients should not sleep within 2 hours, to prevent the effect of anesthesia drugs lead to inhalation pneumonia. Gastroscopy may cause some damage to the mucosa of the digestive tract, patients need to be fasted and dehydrated for 2 hours after gastroscopy, and take in warm water and easy-to-digest food appropriately after 2 hours. Avoid stimulating food or too greasy food to prevent indigestion. If patients experience nausea, vomiting, abdominal pain, dizziness and other discomforts, they need to go to the hospital in time. It is recommended that patients actively cooperate with the doctor’s operation and follow the doctor’s instructions for treatment.