Gastroenteroscopy, i.e., gastroscopy and enteroscopy, does not say that it is not recommended for young people to have gastroenteroscopy and enteroscopy. Young people can have gastrointestinal diseases due to bad dietary habits and other reasons. Gastroscopy and colonoscopy are the most intuitive and commonly used examinations to detect digestive diseases, and they are also one of the ways of early cancer screening advocated by the state at present. Gastroscopy and enteroscopy can observe the mucosa of esophagus, stomach, duodenum, rectum, colon and other parts of the mucosa, and observe whether there is inflammation, erosion, ulceration, polyp or suspected pre-cancerous lesions, tumor, etc. Biopsy can also be performed on the lesions to clarify the nature of the lesions. Minimally invasive endoscopic procedures, such as hemostasis and minimally invasive removal of polyps or early cancers, can also be performed at the same time. Young people who want to do gastroscopy or colonoscopy are advised to go to a regular hospital, consult a professional doctor and cooperate with the doctor to complete the relevant examinations to avoid blind treatment.