This situation is caused by sexual repression or sexual impulses, sexual impulses usually refers to adolescent boys in the process of pubertal development, due to the androgen secretion level of exuberant, so the sexual impulses are more frequent, in the sleep of the spring dream, as the saying goes, daydreams, nightdreams. Sexual repression is mostly a long time single, abstinence, no sex life of men, due to sexual desire can not be released, the long-term accumulation will lead to dreams of spring dream, this situation do not worry too much, because medical statistics say that about 80% of men have similar experiences, spring dream will not bring harm to the body. Generally adolescent males with the maturation of sexual development, as well as the maturation of the body’s neural development, will naturally disappear, sexual repression usually get libido release, the situation will be relieved. In daily life can be used in other ways to alleviate this situation, such as by shifting attention, cultivating amateur interests, hobbies, or adjusting the normal work and rest time, through sports to consume too much energy, which can reduce the frequency of spring dream.