Penile prosthesis is mainly used for the treatment of erectile dysfunction. The possible hazards of penile prosthesis include surgical infection, urethral injury, mechanical failure of the prosthesis and so on. 1. Surgical infection: penile prosthesis is an implantable artificial organ that imitates the structure and function of the human penis and is mainly used to treat erectile dysfunction. During the surgery, if the sterilization is not thorough, leading to bacterial infection of the wound and causing inflammation, it will also lead to some harm to the organism. 2. Urethral injury: penile prosthesis is an implantable artificial organ, the material is different from the penile tissue, so it may compress the urethra or even injure the urethra when it is erected in daily life, which will also have certain harm. 3. Mechanical failure of the prosthesis: when the prosthesis is implanted, if it is used or protected improperly in life, it can also damage the prosthesis causing its function to be affected and thus malfunction. To summarize, it is recommended to receive treatment in regular hospitals to ensure safety after implantation, and if there is any discomfort after implantation, you should go to the hospital immediately.