There are many other ways to induce vomiting, such as squeezing the position below the stomach with both hands. Or the position of the belly after patting.
There is also a method of inducing vomiting with drugs, which is carried out in the hospital.
Extended data
Danger:
Inducing vomiting to lose weight is a popular way to lose weight abroad at first, but it is also common in China. This is already a morbid way to lose weight, and the purpose of losing weight is achieved by spitting out the food you eat without being absorbed. Vomiting is to spit out all the food and stomach acid in the stomach, once the acid in the stomach comes out through the esophagus and mouth.
Many people have bigger faces because they use a lot of muscles when vomiting. In the long run, the body can't stand it, and it will make the face bigger. For some people who induce vomiting, their salivary glands will gradually begin to swell. This process will not bring any pain, but it will increase the secretion of saliva.
Baidu encyclopedia-vomiting