浙江临安一母亲来电咨询:以前我常为儿子的文静乖巧高兴,现在却非常担心。老师反映他上课不专心,写作业时经常干些别的事,丢三落四。更严重的是,他经常咬指甲,几个手指的指甲都被他啃光了,有时还咬出血。这样已经两三年了,为此我甚至打骂孩子,可他就是不改,怎么办啊? Zhejiang Lin’an a mother to inquire: I used to be quiet and well-behaved son, now very worried. The teacher reflected that he did not concentrate in his class and often did other things when he was writing homework. More seriously, he often bitten nails, nails of several fingers were gnawed him, and sometimes bite bleeding. This has been two or three years, and I even beat children, but he is not changed, how to do ah?