I have a pea nut sized boil on right testicle. It's hard but no pain. One day i tried to make a hole on it then i saw some thing coming out like white head. But that was little bit different this is not a just pimple. After few days time it again closed it self. Now it's still hard.
Please let me know to do something..
It's on your scrotum, not the testicle.
It is very likely a sebaceous cyst, an oil gland. The skin on the genitals is very thin so they are easily noticed. Basically it's a big zit.
Warm compresses can help. Keep the area clean too.
To treat them you'd normally just use a hot compress. It increases blood flow so that the circulation increases, bringing with it more white blood cells to fight the infection
You can help reduce them by keeping the area clean and dry, as best possible. They can sometimes be caused by clogged pores or hair follicles. Often no cause is found.