Abstract：
Hair heterochromia may be caused by different mechanisms. At clinical work, we found a Chinese boy whose hair colour gradually turned to red. We record the diagnosis and treatment process and follow-up situation, finally find that altered hair colour phenotype is due to MC1R genetic mutations, rather than zinc deficiency. This rarely red hair colour phenotype improve our understanding of hair heterochromia caused by genetic mutations.
摘要：
毛发异色可能由不同的机制引起。在临床工作中，我们发现了一个中国男孩，他的头发颜色逐渐变成红色。我们记录诊疗过程和随访情况,最后发现，改变头发颜色表型是由于MC1R基因突变，而不是缺锌。这种罕见的红色发色表型改善了我们对基因突变引起的头发异色症的理解。
