Jews have a good customs from generation to generation: 3-7 days after the birth of the baby boy, circumcision surgery. In the nation thousands of years, almost did not occur, penile cancer. We Chinese people does not have this habit, many adults are reluctant to foreskin turned up, so penile cancer with a high incidence.
Prepuce caused by cancerous reasons, there are two main aspects: the prepuce secretion of smegma (A) contains more cholesterol through the bacterial decomposition of carcinogenic substances; (B) long foreskin hinder urination foreskin cavity (the lacunar between the foreskin and penis head) often residual urine, coupled with the smegma of the stimulus, causing the foreskin and glans of chronic inflammatory diseases, falling into evil, into penile cancer. Penile cancer prone to distant metastases, life-threatening.
Experts, the health effects of the prepuce, there are two aspects:
(A) the stimulating effect of smegma: smegma within a high bacterial count, if not regularly cleaned, stimulating the foreskin and the glans, the urethra, inflammation adhesion, resulting in phimosis difficulty urinating, and even develop into more serious complications, such as hydronephrosis (urine), chronic pyelonephritis, kidney stones, chronic renal failure, threatening the lives and safety of patients.
(B) children with long foreskin, often the urethra completely covered, resulting in dribbling urine, the foreskin cavity is often a small amount of urine residue, coupled with the children to wear pants, the foreskin and urethra are often subject to external contamination, the foreskin and urethra prone to inflammation adhesion, and increased difficulty in urination. Children, each urination is very laborious, the foreskin cavity expansion a foreskin cavity often complicated by stones, urinary tract infections and other serious complications.
The smegma stimulate the cervix can induce cancer