Proper health care massage of the penis is good for the body, which can promote blood circulation of the penis, reduce skin sensitivity and so on. But if masturbation is excessive it will bring harm to the body and easily trigger male reproductive system infection. 1. Promote blood circulation in the penis, frequent massage of the penis has the effect of promoting blood circulation and improving the metabolism of the testicles, because penile erection requires a large amount of blood, and health care massage will make the process of blood flow smoother and prevent testicular problems. For men with sexual dysfunction, regular massage of the penis can help improve sexual function and private health. 2. Reduced skin sensitivity, penis health care massage can make the penis skin sensitivity is reduced, help to improve sexual life in time, can help improve the quality of sexual intercourse, massage in the middle of the attention do not ejaculate, and to ensure that the whole body and mind in the process of massage relaxation. If excessive massage will cause harm to the body, easy to trigger the male reproductive system infection, may lead to chronic prostatitis, orchitis, frequent spermatorrhea and other diseases, may also lead to premature ejaculation, ejaculation and other sexual dysfunctions, so the massage must be moderate, if there is discomfort, it is recommended to immediately seek medical treatment.