Because they don't have hands to scratch it....
It helps them to direct their urine more efficiently than puppy bladder pressure can. Without that fur they will get their urine all over them. Most dogs do grow out of it though.
It's possible they have a urine infection that's giving them pain.
they lick because they might feel unclean there. they might lick also is they aet a doggie boner but there is no mommy dog there, so he keeps clean by licking it.
Because cleanliness is next to...
By maintaining the length of your penis.
They hairs located at the base of the shaft are quite common.
Knotting a dogs penis is not taken literally it is not tying a penis in a knot it is when the dogs penis gets stuck in the dogs vagina and he begins ejaculating
You can get hairs by natural sweating so do some exercise. it comes natraly Hair should not grow on the shaft of the penis. this can however happen when the penis is circumcised and the butcher that did the job puled the skin up to far when stitching it.
Yes
Sure it is. All the way except for the glans.
There are roughly 15,500 hairs per square inch on the back of an average dog.
when the hairs stand up on a dogs back they are known as Hackles
no bcoz dogs have altravitae hairs which do not loose colors...
It varies from person to person and it does grow longer in an adult than it does when you first begin to get it. The hairs are curly so they are actually longer (if stretched out straight) than they appear. On average pubic hairs are usually a couple of inches, say from 1 up to 3 or 4 inches. The hairs closest to the base of the penis and on the scrotum tend to be longer than those further away from the penis.
yes
you mean at your bellend??? if you do that's not normal