The harmful effects of shrinkage pills are as follows: Firstly, if shrinkage pills contain hormones, long-term use will cause great harm to the body. Secondly, repeated use of shrinkage pills can cause vaginal infections, destroy vaginal flora, thinning, dryness, shedding and allergies of the vaginal mucosa, thus making the body’s resistance worse. Thirdly, some people have poor results after using shrinkage pills, spending a lot of money and not working, which will affect their physical and mental health. Fourthly, if a woman has a weak stomach, taking pills can also stimulate the digestive health and cause nausea, vomiting and other uncomfortable symptoms. If you want to tighten your vagina, you can do pelvic floor muscle training. It is recommended to go to a regular hospital for treatment and develop a treatment plan under the guidance of a doctor. It is recommended to do more exercise, such as yoga, jumping rope, running, are good choices, and the effect of doing squatting is the best.