At present, expandable prosthesis is mainly a three-piece set, including expandable column, water bladder and pump. There are mainly two kinds of imported and domestic. This prosthesis treats severe organic erectile dysfunction with normal appearance after surgery, normal sexual pleasure, orgasm and ejaculation, so it can satisfactorily complete sexual life and be fertile. The procedure takes about 1 hour and can be used 1 month after surgery. According to my clinical experience, domestic and imported products have the same principle, the operation time is about the same, and the effect is the same. The price imported is higher than domestic. Expandable 3-piece penile prosthesis is the most advanced surgery in the world.