Penis enlargement and growth methods mainly include drug treatment and surgical treatment. 1. Drug treatment: according to the cause of penile shortening, early targeted endocrine treatment is the first choice. For children with abnormal pituitary function, human chorionic gonadotropin can be used, and for children with abnormal hypothalamic function, luteinizing hormone-releasing hormone can be applied. For children with simple testicular insufficiency, testosterone replacement therapy can be used directly. All the above drugs need to pay attention to the side effects and adverse reactions, please use the above drugs under the guidance of the doctor. 2. Surgery: For the endocrine treatment is ineffective, the development of the penis is still poor in adulthood, and affects the couple, we can consider penile lengthening and thickening surgery or penile reconstruction. It can make the extracorporeal part of the body can thus be extended by 3 to 5 cm, but in fact there is no increase in the length of the penis. Penile enlargement is usually performed using an autologous saphenous vein graft to increase the volume of the corpus cavernosum of the penis or using material fillers, e.g., autologous fat fillers. There are risks of fat embolization and infection associated with performing penile enlargement, so caution is advised. Surgery carries certain risks or may not meet psychological expectations and should be chosen carefully with full knowledge of the pros and cons of the procedure.