If the penis is still in the developmental stage, it can be treated through lifestyle improvement and hormone replacement. However, after adulthood, the penis has stopped developing, and the size of the penis has been determined and will not change, and there is no special oral or topical medication that can be used to treat it, so it can only be treated with surgery. 1. Improve your lifestyle: During the male development period, malnutrition caused by partiality and picky eating will affect the development of the penis, so you need to improve your lifestyle, eat more meat rich in high quality protein and vegetables and fruits rich in various trace elements, and adhere to appropriate physical exercise is conducive to promoting the development of the penis. 2. Hormone replacement therapy: various reasons for the lack of sex hormone secretion can cause penile shortening, can follow the doctor’s instructions to use exogenous hormones such as testosterone, chorionic gonadotropin replacement therapy to promote the development of the penis, and at the same time, actively treat the primary disease. 3. Surgical treatment: The surgical methods are penis lengthening and penis enlargement. Penile lengthening is to release the hidden corpus cavernosum by cutting the suspensory ligament of the penis, while penile enlargement is to increase the circumference of the penis through filling and subcutaneous tissue transplantation. For patients with a short penis, treatment is usually not necessary if they are able to complete sexual intercourse normally after erection. Patients who have the need for treatment must go to a regular hospital to avoid adverse consequences.