The male penis part of the chicken skin like things may be due to sebaceous gland ectasia, scrotal eczema, pearl rash and other reasons. 1. sebaceous ectasia: usually associated with puberty androgen stimulation, resulting in the development of sebaceous glands in the mucous membranes of the external genitalia physiological variations, prevalent in adult males, usually manifested in the appearance of cap pinhead size yellowish or whitish pimples, painless and itchy, the distribution of dense or dispersed are possible. 2. Scrotal eczema: If you suffer from scrotal eczema may be due to mental factors such as mental stress or overwork, genetic factors, do not pay attention to personal hygiene, etc., usually manifested as a scrotal rash accompanied by itchy symptoms, it is recommended that timely to the regular hospital for treatment. 3. Penile Pearl Rash: belongs to a normal physiological variation, will not affect the health, and will not be infected and spread, which is usually due to the long prepuce, coronary secretion or dirt long-term stimulation, poor local hygiene, etc., it is recommended to pay more attention to their own personal hygiene, and develop good living habits. The above symptoms may also be caused by other factors, should go to the regular hospital in time for treatment, and strive for early recovery.