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色素合成相关基因突变导致眼、皮肤、毛发黑色素沉或乏一类常染色体隐形遗传疾病总称。

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“雪鼻”或“冬天鼻子”这种情况被称为“色素退”。