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Yes, a head injury can lead to a condition known as "canities subita," where a patch of white or gray hair appears suddenly in the affected area. This phenomenon occurs due to trauma to the hair follicles, which can disrupt melanin production, the pigment responsible for hair color. Stress or shock from the injury may also contribute to this change. However, other factors like genetics and underlying health conditions should also be considered.

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2w ago

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