Penis enlargement belongs to urology. Penile Enlargement is a male external genital plastic surgery for those with congenital absence of most of the penis, acquired penile retraction and those with sexual disharmony. Typically, penile enlargement is performed by increasing the circumference of the corpus cavernosum using filler material or autologous vein grafts, which can be autologous fat, silicone, and so on. This procedure may have postoperative complications such as infection, penile circumcision hematoma, fat embolism, and poor penile appearance. For those who are able to bear children normally, psychological counseling should be conducted to have a correct understanding of the length and thickness of the external genitalia. The length of a normal male in the erect state is 11 to 18cm, and the diameter is about 2cm. It is recommended to choose this surgery with caution. To summarize, if there is any discomfort, please consult a doctor in time.