Boys change voice has not yet come to semen loss, indicating that it has entered the period of pubertal development, and generally still grow the body. Generally for boys, the sign of entering puberty is the appearance of voice change, prominent throat knot and vulvar pubic hair, armpit armpit hair growth, testicles, penis enlargement and other phenomena, part of the boys will begin to have spermatorrhea phenomenon. However, not all boys who enter puberty will have spermatozoa, so there may be boys who have a change in voice but do not have spermatozoa. Generally speaking, after entering puberty, not only the characteristics of both sexes will develop, but also the body will be in the stage of rapid development, height growth in this stage, generally will be more rapid. However, there are some people whose height does not change much during puberty. If you find that boys and girls do not have significant height growth during puberty, it is recommended that you go to the hospital in a timely manner, follow the doctor’s instructions for examination and treatment, and intervene as soon as possible.