A 15-year-old male who masturbates once every two days is likely to cause some harm to his body. Usually, 15 years old is still in the youth development stage, the genitourinary system and related tissues and organs are not fully developed, so frequent masturbation is not recommended. If you have a habit of masturbating at this time, it will not only affect your physical development, but also have a psychological impact on your mind, such as the guilt or depression that many teenagers feel after masturbating. Long-term excessive masturbation is also likely to lead to memory loss, poor concentration, dizziness and weakness, weakness of the waist and knees, impotence, premature ejaculation and other problems.