Yes lots of wrinkles are normal, even when erect threr can be wrinkles.
Masturbation will rarely cause wrinkles. You are probably going through puberty. During puberty, your penis grows. As a result, sometimes, your penis's skin grows faster than your penis itself. As a result, you get wrinkles. As you get older, the wrinkles will start to fade and/or disappear as your penis lengthens.
No. Hand wrinkles are normal and you can't get wrinkles from typing.
Yes its totally normal. The erect penis is about twice the size of the placid penis.
no..only if your frowning
No it isn't. You are definitely doing something wrong.
yeah, its normal. it just means that your penis stretches a lot when you have an erection
Most men have a shade of color that is different to the rest of the shaft of the penis. It is normal.
At thirteen years old, physical development can vary greatly among individuals. A ten-inch penis would be considered well above average for an adult male, so it is unlikely for a thirteen-year-old to have reached that size. It is important to consult a healthcare provider if there are concerns about growth and development.
no
maybe not...:)
Yes, perfectly normal. The penis can darken in color as you go through puberty.
The national average erect penis length is 5 1/2 inches, so you are about as normal as you can get.