At present, many people have prejudice against gastroscopy, fearing nausea, vomiting and other discomfort during the examination, believing that gastroscopy is more damaging, and preferring to take some medicine to “fight” the past, or asking if there are other ways to do gastroscopy instead. In fact, many people are overly worried about the discomfort during the examination, only individual people will react strongly to the gastroscopy, such people usually even feel nauseous when brushing their teeth, but most people can still bear it. What is gastroscopy Electronic gastroscopy is a slim, flexible tube with an endoscope of about 25px in diameter, which is inserted into the esophagus, stomach, and duodenum of the subject through the mouth, and the examination is reflected on a fluorescent screen through a light source, on which the physician can clearly observe various parts of the upper gastrointestinal tract, including some small lesions. Pathological biopsy and cytological examination of suspected lesions can also be performed to further clarify the diagnosis, which is an important tool for the diagnosis of upper gastrointestinal diseases. Gastroscopy is not only used for examination and diagnosis, but also plays an increasingly significant role in the interventional treatment of upper gastrointestinal diseases, such as the removal of polyps directly with high-frequency electric knife, which eliminates the pain of previous incisions, and enables patients to complete the examination and treatment process in a conscious state, with the whole process generally taking only a few minutes. Since gastroscopy and treatment are less painful, shorter, more effective and safer, and can effectively detect early lesions, and no other examination methods, including upper gastrointestinal barium angiography, electrogram and color ultrasound of gastrointestinal tract, can replace it, it has been accepted by the majority of patients. However, gastroscopy as an interventional treatment method, its operation process may be affected by various factors such as patient’s physical condition, physician’s operation level, doctor-patient cooperation and the equipment itself, so not everyone is suitable for gastroscopy. Who is suitable for gastroscopy? 1, with upper gastrointestinal symptoms, including upper abdominal discomfort, distension, pain, heartburn and acid reflux, swallowing discomfort, choking, belching, eructation and unexplained loss of appetite, weight loss, anemia, etc. 2, upper gastrointestinal tract barium meal imaging can not determine the lesion, or symptoms and barium meal test results do not match. 3.Unexplained acute or chronic upper gastrointestinal bleeding, or those who need endoscopic hemostasis treatment. 4, ulcer disease, atrophic gastritis, precancerous lesions, postoperative gastric and upper gastrointestinal disease high-risk groups and other lesions requiring follow-up. 5.Gastric polyps treatment or upper gastrointestinal foreign body removal. Which groups are not suitable for gastroscopy? Gastroscopy is relatively contraindicated: 1, cardiopulmonary insufficiency; 2, gastrointestinal bleeding, blood pressure fluctuations or unstable; 3, severe hypertension, cardiac arrhythmia, electrolyte disorders, etc. tend to stabilize after treatment; 4, high spinal deformity has a huge diverticulum of the digestive tract. 5.Patients with mental illness who can still cooperate with endoscopy Absolute contraindication of gastroscopy: 1.Serious heart, lung, brain and kidney diseases, unable to tolerate endoscopy; 2.Patients suspected of critical conditions such as shock or perforation of the digestive tract; 3.Patients with mental illness who cannot cooperate with endoscopy; 4.Patients with acute inflammation of the digestive tract, especially corrosive inflammation; 5.Patients with obvious thoracoabdominal aortic aneurysm; 6.Patients with extreme cachexia The patient should be aware of What should be noted for patients undergoing gastroscopy? 1, in order to prevent cross-infection, gastroscopy before the liver function, hepatitis B and C and other immune testing, such as abnormal test results, you need to use a special gastroscope or wait for a later sort of examination. 2, 1-2 weeks before the examination stop using anticoagulant drugs, such as heparin, warfarin, aspirin, etc., to prevent causing gastrointestinal bleeding. 3, at least 6 hours before the examination fasting water, in order to avoid the stomach contents to obscure the lesion, hinder the normal examination, and if the stomach food is not emptied in the case of gastroscopy, the person being examined often have stronger nausea and vomiting. 4, if you have done barium meal examination, barium meal barium may be attached to the gastrointestinal mucosa, especially the ulcer lesions, so it is not recommended to do gastroscopy within 3 days, so as not to affect the effect of the examination. 5.In order to make the examination go smoothly, the patient’s neck should be tilted back as much as possible for adequate anesthesia when the patient is under anesthesia in the throat. 6, Loosen the collar, relax the belt, and remove everything that will affect the examination such as dentures and glasses before the examination. 7.During the examination, you should do even breathing, swallowing action, breath-holding action and clenching of dental pads as required by the doctor to maintain a relaxed state and avoid excessive mental tension. In case of discomfort and unbearable, use hand signals to indicate to the surgeon so that necessary measures can be taken. 8. 2 hours after the examination, wait for the anesthetic effect to disappear before eating liquid food, so as not to accidentally enter the trachea. After the examination, some patients may have throat discomfort, which generally does not require special treatment and can disappear on its own after 2-3 days. 9, 1 – 2 days after the examination, especially for patients undergoing pathological biopsy, should eat a soft, easily digestible diet, avoid eating raw, cold, hard and stimulating foods such as tobacco, alcohol, tea and coffee. 10, patients can work as usual after the examination, such as the sick and frail need to rest properly, the driver can not drive alone that day, after 3 days, avoid strenuous exercise.