The 11-year-old boy began to masturbate masturbation is generally a normal physiological phenomenon, but it is not advocated and not recommended that underage frequent masturbation. Usually, 11-year-old boys are just entering puberty, the growth and development of the reproductive system, the body androgen secretion, will appear sexual desire, sexual impulse and sexual excitement, so masturbation will occur. However, 11 years old is the golden stage of growth and development, if this time to develop the bad habit of frequent masturbation, it is likely to affect the development of the genitourinary system, as well as normal study, work and life, and even affect the later sexual function and fertility, etc.. Therefore, it is not recommended that minors masturbate frequently.