Usually, gastroenteroscopy can not be performed in the absence of a medical condition, because the gastroenteroscopy process can damage the gastrointestinal mucosa, and even lead to gastrointestinal perforation, but the probability of its occurrence is relatively small, and if there is a need for a medical condition, it is necessary to carry out a gastroenteroscopy under the guidance of a physician. During gastroenteroscopy, the intestinal mucosa and gastric mucosa can be damaged, and if improper force is exerted during gastroenteroscopy, it will cause injury to the intestinal and gastric mucosa and even lead to intestinal perforation, and gastroenteroscopy cannot be performed if there is no need for the condition. However, the above hazards are usually rare, therefore, if there is a need for gastroenteroscopy, it is necessary to carry out gastroenteroscopy in time. Before performing gastroenteroscopy, you need to follow the doctor’s instructions to prepare for the examination and follow the doctor’s instructions to complete the examination.