From the age of 3-4, the foreskin opening begins to expand, and the hard skin can be exposed after foreskin expansion. By puberty (after the age of 17), fewer than 1% of children with phimosis are present. Overall, 90% of physiological phimosis can heal spontaneously at the age of 3-5 years.
It refers to the long foreskin and narrow foreskin opening, with the foreskin not being turned upside down and the penis not being exposed. "This is true in newborns, but by the time the child is 3-4 years old, most of the narrow foreskin openings expand as the child develops, and 90% of the foreskin can then be turned up.".
Although physiological phimosis is very common among young boys and most of them can heal themselves, it also poses some problems because the foreskin cannot be turned up and the penis cannot be exposed. For example, because the foreskin in this child cannot be turned up, the epithelial cells and sebaceous gland secretions from the glans penis and foreskin cannot be discharged, leaving them between the foreskin and the glans penis. When some parents bring their children to see a doctor, they mistakenly believe that they have a knot on their penis, or even believe it is a tumor. In fact, this is the retention of foreskin scaling, which can cause some problems, such as secondary infections, redness, and pus secretion.
Almost every boy is born with phimosis, but if it is not phimosis, it may be suffering from other diseases, such as hypospadias or supraspadias. Most children with physiological phimosis have almost no abnormal sensations. If they have abnormal sensations, they may have abnormal symptoms caused by physiological phimosis and need medical attention.