When the foreskin is too long or phimosis occurs, because the secretion of the inner plate can not be removed in time, bacteria will grow and multiply here, which will increase the secretion in the foreskin, cause scales and odor, and even cause local inflammation in severe cases, that is, balanitis prepuce. On the one hand, bacteria can retrograde infect urethra, prostate, seminal vesicle, epididymis and testis. On the other hand, bacteria can also be sexually transmitted to each other, causing vulvitis, vaginitis, cervicitis, endometritis and so on. When choosing a hospital, we must be careful, pay attention to the qualification of the hospital, whether it is a regular hospital recognized by the health department, see the hospital's inspection equipment, see the level of hospital doctors, see whether the hospital's reputation is trustworthy, and see whether the hospital's fees are fair, just and transparent.