皮肤变白症

例句：

1. 1. His skin has turned white due to the skin disease he suffers from.
   由于他患有的皮肤疾病，他的皮肤已经变白了。
2. 2. Vitiligo is a condition where patches of skin turn white or yellow.
   白癜风是一种状况，其中皮肤的斑块变成白色或黄色。
3. 3. The patient was diagnosed with vitiligo and started treatment immediately.
   患者被诊断出患有白癜风，并立即开始治疗。