The traditional testicular reconstruction method is to implant hard or cystic silica gel testicles into scrotum, but this method can only make up for the lack of appearance. It is necessary to inject androgen every three to four weeks after operation to maintain the secondary sexual characteristics of men, which is really a very troublesome and painful thing for people who have undergone artificial testicular reconstruction. Men lack one testicle or two testicles for some reason. Psychological and physiological needs will require doctors to perform testicular plastic surgery to achieve the coordination of appearance and function. The Faculty of Medicine of Gunma University in Japan has successfully developed an artificial testis that can "secrete" androgens, and successfully applied it in clinic. This new artificial testis with the function of "secretion" is made by mixing liquid polymer compound and testosterone evenly, and then curing it by receiving radiation at MINUS 78 degrees.

Plastic surgeons then implanted this high-scoring compound containing androgen-silica gel clot into the human scrotum. Because of the slow release technology, this artificial testis can release androgen slowly and continuously. After blood biochemical examination, the level of androgen in patients' blood can reach the standard of adult men. The "secretion" function of this artificial testis can last for several years, and the "secretion" amount of artificial testis can be adjusted by changing the formula of polymer compounds. Therefore, it is very popular with patients. In addition, the preparation process is simple, the drug effect can be fully exerted, and the side effect is small. It is an ideal artificial testis, which can be operated once in testicular plasty.