On April 30, 2006, the State Food and Drug Administration (SFDA) revoked the medical device registration of Omnidine and completely stopped its production, sale and use. Amide hydrogel is a chemical synthesis, the monomer constituting it is highly toxic, while the compound is not toxic, but injected into the human body, it will decompose to produce highly toxic. Because it can decompose into highly toxic monomer molecules in the human body, poisoning the nervous system, damaging the kidneys and causing harm to the life circulation system, the World Health Organization has listed this substance as one of the suspected carcinogens and a time bomb of danger. As a liquid injectable material, it has a powerful effect of quick results and obvious effects, and has become the best material for breast augmentation, which has taken the country by storm in a short period of time, and women who love beauty have gone to hospitals for breast augmentation surgery without fail. It can affect the human nervous system, cause endocrine disorders, and the risk of cancer. This can lead to death. Therefore, for patients who have received breast augmentation in the past, it is advisable to remove the Omniderm before the sequelae appear. In order to avoid serious sequelae in the future. There are two ways to remove the Omnidene, one is to remove the Omnidene alone, and the other is to perform implantation at the same time after the removal of the Omnidene, the latter, can still maintain the shape of the breast.