I have a problem in my penis . It is closed from my birth and cap has never came out. I am 17 year old.

Greetings,

You have a condition called phimosis, in which the prepuce or foreskin cannot be rolled back or retracted behind the glans or head of the penis in an uncircumcised male.     

Please talk to your parents or an adult to trust and seek medical care for this problem.   TRH