Gastroscopy can be done for pregnancy preparation. Gastroscopy is mainly applied to esophageal, gastric and duodenal lesions, and is the preferred examination method for upper gastrointestinal lesions. Since general gastroscopy does not require anesthesia, it does not have much effect on pregnancy preparation; while painless gastroscopy mostly uses fast-acting anesthetic drugs such as propofol, which can be completely metabolized after 2-3 days in general, so patients can choose painless gastroscopy, but it should be noted that patients who have painless gastroscopy should postpone expecting pregnancy until the next ovulation. If the patient already suffers from gastric disease, or when gastric disease is diagnosed after gastroscopy, timely treatment should be given to avoid aggravating gastric discomfort in the upcoming pregnancy caused by early pregnancy reaction, and the medication is more sensitive during pregnancy, and many drugs are not available, which may delay the treatment. At the same time, due to the changes of endocrine function in pregnant women during pregnancy, it will cause nausea, vomiting, abdominal pain, loss of appetite and other digestive symptoms, and pregnant women with previous stomach problems are more likely to aggravate the symptoms, which will in turn affect the nutritional status of the pregnant woman and the fetus, and is not conducive to the growth and development of the fetus. In these cases, it is necessary to have a gastroscopy for examination and treatment during pregnancy preparation, and the original disease should be actively treated to avoid the attack during pregnancy to affect normal pregnancy.