The male private place long white pimples consider is sebaceous cysts, penis pearly papules and folliculitis and other causes. 1. sebaceous cysts: actually is the hair follicles within the white dirty things not timely discharged out of the cause, generally do not need special treatment. 2. Penile pearly papules: they are caused by inflammatory stimulation as well as physiological developmental variations, etc. When the foreskin is too long, bacteria can easily be infected and reproduced, thus stimulating the coronal groove or the foreskin to appear as a pearly rash. 3. Folliculitis: due to the boys intimate skin sebaceous gland distribution, friction damage, hygiene care is not good case, easy germs breeding and lead to folliculitis, the emergence of intimate long white pimples. Boys with symptoms of white pimples in the private place, should go to the specialist hospital in time with the accompanying symptoms, clinical visualization to see the appearance of pimples traits after the identification and judgment.