Hyaluronic acid genioplasty is generally used for patients with short penis who are not satisfied with their sex life. Although the injection procedure has the advantages of small trauma, fast recovery and remarkable effect, there are also many risks. First of all, the effect of hyaluronic acid injection plastic surgery is not permanent, after 2~3 years, the injected hyaluronic acid will be absorbed and metabolized by the human body, and the effect of penis enlargement will be gone. Secondly, hyaluronic acid injections have certain risks, light after the injection of the penis shape irregular, unnatural, affecting the aesthetic, serious if the hyaluronic acid mistakenly injected into the spongy body will lead to edema and even affect the erectile function. In addition, hyaluronic acid injection there is the possibility of displacement, displacement not only can not play the effect of penis enlargement, but also may produce compression symptoms, resulting in blood in the pubic area, semen run poorly. Hyaluronic acid breaks into blood vessels, can cause vascular embolism, affecting the pubic and genital blood supply.