A boy with one testicle goes through puberty the same time a person with two does. The second testicle is a spare!!!! You only need one!
11
If he has a testicle, there will be sperm.
Yes, it is normal for this until the boy reaches puberty and begins to develop his sexual organs along with the rest of his body. Puberty is a time for growing and maturing.
The definition of delayed puberty in a boy is a boy who has completed his 14th year with no signs of pubertal development. If you are older than 14 and have not yet had any outward signs of going through puberty, you should contact your doctor to determine the underlying cause.
There is no way of knowing. Everybody is different. You could be going through puberty right now at age 12 or at age 15.
9 to 15
If a boy has pubic hair at age 9, he has hit puberty. This would mean he's an early bloomer. It would be very unusual but not unheard of.
through puberty
No, birthday months have nothing to do with when Puberty begins for a boy. Most boys will begin puberty around the age of 10-12 years-old. Puberty lasts a few years.
when he hits puberty
it is normal
If a boy has no testicles, then his body will not go through puberty on its own, but his doctor will have him on a hormone regimen that will cause him to develop just like all the other boys his age, and nobody but the boy and his family will even know the difference.
The size of a boy's nipples grow somewhat during puberty, so it will be dependent on his age and his stage in puberty.