The foreskin can usually be pulled over the head of the penis, or the glans. However, in some cases the foreskin may become too tight and may have difficulty in being retracted. This condition is called phimosis or tight foreskin.
For most young boys the phimosis will resolve before adulthood, but for some this condition will last into their adulthood. Although there aren’t serious health conditions or dangers relating to phimosis, it can result in pain, swelling, discomfort during intercourse, a greater risk of infections and difficulty urinating.