Hypothyroidism is an underproduction of certain hormones and is the most common cause of patchy hair loss known as alopecia areata (which can affect the whole body and not just the head).
甲状腺功能衰退症就是某种激素分泌较少，这是头发脱落形成斑秃的最常见原因(这可能影响整个身体而不仅仅是头部)。
Hypothyroidism is an underproduction of certain hormones and is the most common cause of patchy hair loss known as alopecia areata (which can affect the whole body and not just the head).
甲状腺功能衰退症就是某种激素分泌较少，这是头发脱落形成斑秃的最常见原因(这可能影响整个身体而不仅仅是头部)。
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