Seventeen-year-old girls masturbation is a normal physiological needs, but is a bad habit, excessive masturbation, or do not pay attention to hygiene will affect the health. Seventeen-year-old girls enter the puberty development period, the body sex hormone secretion is strong, there is a sexual demand, occasional masturbation is a normal physiological needs. Pay attention to hygiene, avoid frequent masturbation, generally has no effect, but if a foreign object inserted into the vagina, may lead to hymen, vaginal rupture. Pay attention to hygiene when masturbating. Usually should develop a good habit of living and living, more exercise, more outdoor sports, avoid contact with not forceful sexual stimulation, sexual desire, sexual impulse, you can go out for a run, to participate in some outdoor exercise, do some other things, divert attention.