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编辑同志:我的3岁儿子经常用手触摸生殖器,请问,这是手淫行为吗?为什么幼儿也有手淫行为?我们应该怎么办?内蒙匡美玉
Editor’s Comrade: My 3-year-old son often touch the genitals, may I ask, is this masturbation behavior? Why do children have masturbation behavior? What should we do?