不少家长发现自己的宝宝头发特别少，别人家的小孩的头发却是浓密得很，又黑又有光泽，这到底是怎么回事呢?难道自己的宝宝一出生就营养不良吗?其实，婴儿头发的生长，有早有迟，有快有慢。绝大部分的孩子随着身体发育过程，会渐渐由稀到密，由黄到黑。不少宝宝都有头发稀少的问题，很多妈妈也很担心。宝宝头发稀少通常有以下的原因造成的，妈妈们一定要看看，以便对症处理。

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