现在已经知道人类有2300多种遗传性疾病,大约有2%的婴儿出生时有严重缺陷.由于产前诊断技术的发展使许多遗传性疾病在产前作出诊断成为可能.将产前诊断技术应用于遗传性皮肤病是非常有意义的,它有助于防止某些遗传性皮肤病患儿的出生,展望不久的将来在宫内治疗遗传性皮肤病将成为可能. It is now known that there are more than 2,300 hereditary diseases in humans and about 2% of infants have severe defects at birth. The development of prenatal diagnosis has made it possible to diagnose many genetic diseases during the prenatal period. Prenatal diagnosis techniques It is very significant for hereditary dermatosis. It helps to prevent the birth of some hereditary dermatological diseases. It is possible to treat intrauterine genetic diseases in the near future.