Sufferers have light and sparse scalp and body hair, a reduced ability to sweat and the congenital absence of teeth.

患上此病的人不能暴露在阳光下、头发稀少、排汗系统差、并且长有尖利的牙齿，这使得他们看起来酷似“吸血鬼”。

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Important faults: Teeth small, sparse.

重要缺点：细小稀疏的牙齿。

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Important faults: Teeth small, sparse.

重要缺点：细小稀疏的牙齿。

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