Some children’s foreskin mouth is very small, often have difficulty urinating, long-term penile head can not be exposed leading to the foreskin scale gathered in the coronal groove, often irritate the mucous membrane, inducing penile head prepuce inflammation. When the acute attack of inflammation, the head of the penis and foreskin will appear moist, red, swollen, hot, painful, can produce purulent discharge, severe cases can appear fever, urinary Chu Chu and upper urinary tract infection. After repeated acute episodes, the inflammation will turn into a chronic presence, manifested by itching of the penis, penile head and foreskin, often inducing the affected child to squeeze and pull the penis with his hands. After repeated episodes of penile head circumcision, the foreskin opening will become fibrotic to varying degrees.