The foreskin is the layer of skin that surrounds the outside of the penis. Turning over the foreskin, it can be seen that the ring-shaped narrowing area behind the glans is called the coronal groove. "There are many sebaceous glands in the skin near the coronal sulcus, which secrete a smelly secretion in the form of yellowish white mud called" foreskin scaling. "".
Phimosis refers to the fact that the opening of the foreskin is too small to allow the foreskin to turn up and reveal the penis head; "Long foreskin means that the foreskin covers all of the penis, while the foreskin opening is not small and can be turned up to reveal the penis.". Long foreskin in infants and young children is often physiological, and it is only after puberty that the glans penis still cannot be exposed that it can be called phimosis or excessive foreskin.
"Symptoms of prepuce and phimosis - Symptoms of excessive prepuce length: When a man becomes an adult, the skin of the penis wraps around the glans, preventing the glans from being completely exposed.". It can also be divided into true foreskin and false foreskin. The true foreskin is too long, and the glans cannot be fully exposed after the penis is erect; "Prolonged pseudoforeskin refers to the fact that the glans cannot be fully exposed at ordinary times, but can be fully exposed after the penis has been erected.".
Prepuce and phimosis symptoms - phimosis symptoms: phimosis refers to the complete wrapping of the foreskin around the glans, which cannot be exposed at any time.