“手淫”有广义与狭义之分。狭义指以手摩擦阴部(阴蒂或阴茎)以获得性兴奋和达到性高潮,广义指自我性刺激。现在通广义。对手淫,国外有详尽的调查。日本的调查表明,男青少年手淫的初始年龄集中在14～17岁,最早为9岁。17岁的男性和19岁的女性大部有过手淫史,到20岁时几乎100%的男性都有过手淫,女性略少些。美国的调查材料表明,15岁的男孩80%有手 “Masturbation ” has a broad and narrow sense. Narrow sense refers to hand rubbing genitals (clitoris or penis) to get sexual excitement and reach orgasm, broad refers to self-stimulation. Now generalized. Masturbation, a detailed survey of foreign countries. According to a survey conducted in Japan, the initial age of male adolescent masturbation is 14-17 years old and the earliest is 9 years old. The 17-year-old man and the 19-year-old woman mostly have masturbation history. Almost 100% of males have masturbation by the age of 20, and women have slightly less. According to the survey data from the United States, 80% of 15-year-old boys have hands