Oculocutaneous albinism(OCA) is a group of autosomal recessive disorders of melanin synthesis,which is characterized by congenital hypopigmentation of skin,hair and eyes.

眼皮肤白化病是由于黑合成相关基因突变导致眼、皮肤、毛发黑着减少或乏引起的染体隐形遗传疾病的总称。

In some instances, Siberian Huskies can exhibit what is called "snow nose" or "winter nose".This condition is called hypopigmentation in animals.

在某些情况下，哈士奇会出现所谓的“雪鼻”或“冬天的鼻子”这种情况被称为“减退”。