There is no general method or medication to increase the penis. For adults, a short penis can be increased through surgery. For minors, the penis is still in the process of development, there is no special method or therapeutic drugs can promote the development of the penis, mainly attention to balanced nutrition. If you feel that the penis is short, you can urology clinic to see if there is excessive obesity or penile problems, if it is caused by obesity, you can lose weight to improve the symptoms, if there is a problem with the penis, the serious need for surgical treatment. For adults, if the size of the penis is normal, generally in the erect state length greater than or equal to 8 centimeters is normal, can normally complete sexual life, is not need to worry and take any treatment measures. If there is a prepuce, hidden penis, can be treated through surgery, the length of the penis will have some improvement. There is no special drug or health care product that can make the adult penis longer, do not believe in advertisements and use health care products indiscriminately. Abnormalities in the penis need to go to the hospital first for examination and treatment as prescribed by the doctor.