This is called depigmentation.

这就是所谓的脱色。

Total depigmentation of the nose or inside of the lips.

共计脱色的鼻子或内部的嘴唇。

Vitiligo is an acquired depigmentation of skin melanoma.

白癜风是一种后天性黑色素脱失性皮肤病。

Depigmentation of the hair and spooned nails point to malnutrition.

头发脱色和匙状甲表明营养不良。

Depigmentation is not the same as "skin lightening" or "skin bleaching."

脱色与皮肤美白或皮肤漂白并非一回事，也不相同。