Phimosis is a condition in which the foreskin cannot be retracted. The definition of phimosis is the inability to retract the foreskin over the glans penis. It is a condition that is common in children and young adolescents. It usually stops being a problem by the age of 3 and by the age of 10 most uncircumcised boys can pull their foreskin back from the head of the penis.
For some, it may not retract completely until they are about 17-years-old if this condition occurs it is called phimosis. It may be bothersome for some people, which may cause repeated ballooning of the glans and urinary tract infections. In adults, especially diabetics, infections may predispose to phimosis and cause urinary tract obstructions with dribbling urine.