Boys are particularly easy to react, androgen secretion in the body is mostly related to the strong, from time to time to have sexual impulses is also a very normal physiological phenomenon. And in the adolescent boys, with the growth and development of the genitals, the glans is also very sensitive, it is likely to be slightly stimulated, the phenomenon of erection will occur. It is recommended that you should control your desire properly, try to read fewer books and movies with sexual content, and avoid too much masturbation. In addition, usually also pay attention to a balanced diet, appropriate exercise, in order to enhance physical fitness. If the state of easy reaction affects the normal life, it is recommended to consult a doctor in time to see whether it is due to the high level of androgen in the body.