Genuine phimosis is a condition in which the foreskin is so long that the glans cannot be exposed when the penis is erect. After the age of 3 years, the foreskin still cannot be turned to the coronal sulcus, and it is recommended to treat this phenomenon through surgery before the age of 9 years. The presence of a true prepuce can easily cause infections in the private parts, because when urinating, urine can easily accumulate in the prepuce, and there are many toxins in the urine, which can easily cause bacterial infections in the private parts, resulting in urethritis and priapism. If in the long-term stimulation, and even cancer phenomenon, cause the corresponding difficulty in urination, and even affect the function of human kidneys, the phenomenon of frequent urination. So in this case, we must pay attention to the corresponding, timely to the hospital for treatment. Diet should be light and nutritional, pay attention to the cleaning of private parts and develop good personal hygiene habits.