estorgen
estrogen
Testostrone is a hormone that causes secondary sex characteristics in males and sperm production.
The most prominent hormone involved in secondary sex characteristics for a male is testosterone.
The primary sex characteristics are the genitalia. The secondary sex characteristics are those typical of males or females. Breasts, body shape, Adam's apple, voice pitch, hair growth, etc. are secondary sex characteristics.
Testosterone
Male facial hair
The development of secondary sex characteristics (for example, breasts in females and facial hair in males) causes girls to look like women and boys to look like men.
There could be a number of causes for this to happen. Low levels of Testosterone would be the first thing to check. Somatropin is the hormone associated with growth.
In humans, visible secondary sex characteristics include enlarged breasts of females and facial hair and adam's apple on males.
The answer is testosterone.
Testosterone
Testosterone