Normal values for the reproductive system in adolescent males are usually age-related and cannot be generalized. Adolescent males around 10-11 years old have a penis length of about 3-4 cm, no pubic hair, testicular volume of 2-3 mL, and testicular length <2.5 cm. Around the age of 10-12 years penis length is about 5cm, testicular volume about 4-8mL, gradually grow sparse downy-like pubic hairs, straight hairs, penis root has sparse a few. After entering 14 years of age, the length of the penis is about 6cm, the testicular volume is about 10-15mL, and pubic hair also appears on the pubic symphysis. Therefore, the adolescent male reproductive system is not a numerical value but a range reference value, and the range interval is mainly determined by age. In addition, it is recommended to pay attention to the daily care of the reproductive system, keep clean and dry, if the patient’s reproductive system is too short, should consult a doctor in a timely manner to find out the cause of the disease, do not avoid medical treatment, in order to avoid delaying the best treatment time.