According to an article by Ono, Ogawa and Hyakusoku in Plastic and Reconstructive Surgery, hydrogel injections are injectable fillers that can permanently augment the soft tissues in the body. The gel has been used for cosmetic purposes, and complications that stem from these injections can be difficult to treat.
Although the use of hydrogel injections has become popular internationally, studies on the safety of using it are limited and inconsistent. The gel has been known to induce complications, and there have been an increasing number of cases in Asian countries where the use of this gel has led to medical issues that require treatment, notes Ono et al. Surgery is generally used to correct problems that stem from using this gel.