The 17-year-old boy penis growth and no special effect method, will be with the normal growth and development of natural growth. 17 years old is still in the period of puberty, the whole period to strengthen the nutrition, to ensure enough good sleep, proper exercise, pay attention to personal life and hygiene, menstruation will naturally grow and develop, and no special drugs, or food to promote the development of the penis, do not indiscriminate use of health care products, indiscriminate use of prescriptions. If you have a prepuce, you need to take surgical treatment as soon as possible, and if you have a long foreskin, you should open the foreskin diligently to clean the secretions and prevent infection. The body does not have any uncomfortable symptoms, pay attention to hygiene, strengthen nutrition, maintain a positive and optimistic mentality life and diet can be regular.