There are relatively more ways to induce vomiting, first of all, you can self-induce vomiting, that is, drink a lot of water, and after drinking, stimulate the throat with a hard object such as a finger to cause reflex vomiting, this is the most convenient and simple method to induce vomiting. In the hospital emergency department or gastroenterology department, you can use gastric lavage to induce vomiting by inserting a gastric tube and injecting liquid, stopping every 500 ml and using a negative pressure suction device to remove the substance from the patient’s stomach. The need to induce vomiting is usually due to the accidental ingestion of harmful substances, if there is no accidental ingestion of toxic substances and other harmful substances, you can not induce vomiting, the substances that enter the stomach can generally be discharged through the intestinal tract, there is no need to induce vomiting in such an unpleasant way.