A penis that is too small can be treated with measures such as surgery or medication. Penis size varies greatly from individual to individual. If the length of an adult’s penis is shorter than 8 centimeters in the erect state, it is possible that the penis is short, and should be examined to see if there is a hidden penis, if there are congenital developmental abnormalities and other reasons. 1. Surgery: If you have a hidden penis or a short penis, you can take treatment measures such as penile lengthening surgery, but since there is no very mature and effective surgical treatment, you need to be careful in choosing surgical treatment. 2. Medication: clinically, it is mainly used for patients with androgen deficiency, and can be supplemented with androgens, such as testosterone and chorionic gonadotropin, under the guidance of a doctor. The penis is too small need to go to the hospital to determine whether you need to take treatment measures, to avoid abusing drugs or health care products.