This is a condition in which the foreskin cannot be pulled back behind the head of the penis. Technically, as soon as the foreskin is pulled back, phimosis no longer is there. There are varying degrees of phimosis. Many young boys will experience pain when the foreskin is pulled back, but this is expected to resolve itself over time. Some adult men who are uncircumcised will experience pain as a result of a tight foreskin.