The current situation of gastric cancer in China is that the incidence rate is high, but the early diagnosis rate is low and the survival prognosis is poor. The incidence of gastric cancer remains high, and more and more people around us are suffering from gastric diseases, so gastroscopy has become familiar to the general public. However, do you really know about gastroscopy? The so-called gastroscope, in short, is a fiber optic hose with a camera. During the examination, through the mouth or nose, the fiber hose enters the digestive tract, through which the doctor can observe the surface mucosa of the esophagus, stomach and duodenum, as well as observe whether there are ulcers, abnormal bulging masses, varicose blood vessels. What should I pay attention to during gastroscopy? For gastroscopy, in order to clearly see the mucosa of the digestive tract, the area to be examined must be clean, i.e. no food and no blood clots remain. If the gastroscopy is done in the morning, no food or drinks should be consumed after 8 p.m. the night before the examination, smoking is prohibited, and easy-to-digest food with little residue should be eaten for dinner the day before. This is because even if the patient drinks a small amount of water, the gastric mucosa color can change, such as in the native lesions of significant atrophic gastritis, the gastric mucosa can change to red after drinking water, making the diagnosis incorrect. If gastroscopy is done in the afternoon, the patient may be allowed to drink some sugar water before 8:00 am that morning, but not to eat anything else and not to eat at noon. In the case of a patient with pyloric obstruction, gastric lavage must be performed the night before the examination to thoroughly wash out the stomach contents until the refluxed fluid is clear. Before the gastric tube is withdrawn after lavage, the patient is placed in a supine position with head down and feet up to allow complete drainage of residual fluid from the stomach. Gastric lavage cannot be performed on the same day because it can change the color of the gastric mucosa. If a barium meal has been done, this barium meal may be attached to the gastrointestinal mucosa, especially the site of ulcerative lesions, making it difficult to diagnose by fiberoptic gastroscopy, so gastroscopy must be done 3 days after the barium meal. Who needs gastroscopy? If you have the following conditions, it is recommended to go to a regular hospital for gastroscopy: 1, frequent difficulty in swallowing, pain in the upper abdomen, non-stop burping, acid reflux, obvious feeling of fullness; 2, unexplained vomiting of blood, black stools, unexplained abdominal pain (repeated pain and location is not clear), combined with medical history, it is recommended to gastroscopy together; 3, liver cirrhosis and other diseases need to improve the esophagus, gastric fundus and other complications Evaluation of patients; 4. Patients who need regular follow-up after surgery for upper gastrointestinal tract tumors such as gastric cancer and esophageal cancer; 5. High-risk group of gastric cancer: patients whose immediate family members have had gastric cancer and whose previous examinations showed high-risk factors need regular gastroscopy for timely detection of early gastric cancer. How to view the gastroscopy report? Generally, you can get the gastroscopy report soon after gastroscopy, but you need to pay attention to whether tissue biopsy is performed or not. Whether biopsy is performed or not is judged by the operating doctor with clinical experience, and generally biopsy is taken for suspicious tissues and tissue examination is performed to judge the nature. If there is no biopsy, regardless of the degree described in the report, are different manifestations of inflammation, the doctor combined with the symptoms, whether the combination of H. pylori infection and the degree of decision whether to treat and treatment plan, do not worry too much. Postoperative care: 1. After surgery, tell the patient to eat only about 30 minutes after anesthesia for those without biopsy, and 2 hours after biopsy for those who can eat a warm and cool liquid diet to reduce friction on the traumatic surface of the gastric mucosa. 2.Postoperative discomfort or pain in the throat, or hoarseness, patients will improve in a short time, do not need to be nervous, use light saline gargle or throat tablets. Observe whether there is active bleeding, such as vomiting blood, blood in the stool, abdominal pain, abdominal distension, and important vital signs, such as heart rate and blood pressure, etc. If abnormalities are found, make corresponding treatment immediately. 3, after the completion of gastroscopy may feel vomiting, do not get out of bed immediately to avoid fainting. Since the gastroscopy requires fasting, so that the stomach is empty when doing the examination, so the speculum should be inflated after entering the stomach, after the examination, some people have no special reaction, while some people will have pain. This pain usually disappears in one to two hours, but if the pain lasts for four hours or more, it needs to be treated by a doctor. In short, the body should pay more attention to itself, do not be overly afraid of gastroscopy, worry about discomfort, but also do not take changes in their own physical condition lightly, scientific and rational view of gastroscopy and stomach diseases, the correct perception of the examination and disease.