erection occurs
Injury.
nothing
They get hot.
That can cause serious injury.
The object will not move!!!
If during puberty, a male has low testosterone, it COULD inhibit development of the penis, and other reproductive organs. However, low testosterone is a rare condition. However, just because someone has a below average sized penis, it does not indicate that they have low testosterone. Penis size is determined mostly by genetics.
Testosterone is a hormone that works inside the body. You would not be able to apply it topically.
An early gestating fetus has an organ which reacts to testosterone to enlarge and become a male penis and reacts to a lack of testosterone to shrink and become a female clitoris.
Testosterone applied externally ~might~ grow a bunch of hair! But it won't increase penis size or improve hardness. If you think the scrotum will get bigger, they won't grow either, sorry.
Its a secretion produced by the testosterone and released by penis during ejaculation
Viagra increases sexual energy, not penis size. Testosterone may help boost your penis size, but its effectiveness varies.
No. Nor are there any exercises which will increase size
Probably not, as it is essentially an injection of testosterone to the penis, causing an erection.
Yes testosterone levels affects size. (If you want testosterone only get these via your doctor not from some website claiming what they can do for you.)
By no means, if good hygiene is applied.
Testosterone is the male sex hormone and is produced in the testes. Testosterone changes a boy's body to a man's body and is responsible for all those changes in boys during puberty (body hair, larger penis, larger sex drive).
Testosterone is the male hormone that controls Puberty and growth in a male. Boys have other hormones in their bodies also, including female hormones ! But Testosterone is the greater male hormone that gives boys their characteristics.