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不要揉眼。小孩随便揉眼,既不卫生,又会伤眼。据化验,一只手上有4万——40万个细菌和寄生虫卵。不要食指。幼儿常喜欢食指,这是一种不良习惯,既不卫生,又会引起流口水,还会影响牙齿的正常生长。不要挖耳。乱挖耳朵,危害大,尤其是小孩,既不卫生,又会损害耳朵。在一克重的指甲垢里含有几十亿个细菌和产生的虫卵。
Do not rub eyes. Knead children rub eyes, neither health, but also hurt eyes. According to tests, there are 40,000 to 40,000 bacteria and parasite eggs on one hand. Do not index finger. Children often like forefinger, which is a bad habit, neither health, but also cause drooling, but also affect the normal growth of teeth. Do not dig ear. Dug ears, harm big, especially children, neither health, but also damage to the ears. Contains billions of bacteria and eggs produced in a single gram of nails.