Under normal circumstances, the length and diameter of the penis will not continue to grow after a man reaches adulthood. If there is a need for enlargement, surgical treatment is required after evaluation by a doctor. For adult men, there is no possibility of secondary development of the penis. If a man has poor penile development, the length and circumference of the penis do not meet the normal values when erect, engaged in special occupations such as modeling, or long-term sexual disharmony, etc., he can be evaluated by a doctor and selected for surgical treatments such as autologous fat injection and transplantation, implantation of penile prosthesis, and transplantation of autologous dermal tissues. However, it should be noted that people suffering from bleeding disorders, diabetes, mental illness, etc. are prohibited from undergoing surgery. If you are willing to undergo surgery, you can go to a regular medical institution and follow the doctor’s instructions to avoid blindly trusting prescriptions.