Premature Gray Hair Could be Genetic
Premature graying of hair is also known as canities. Going gray isn't always related to aging. If you're not yet 40 and see more than a few gray hairs, chances are it runs in your family. Premature graying of hair has been observed with greater frequency among certain families, suggesting a family predisposition for this condition. Gray usually isn't a sign of poor health, though anemia, thyroid issues, vitamin B12 deficiency, and vitiligo can cause premature graying. You can highlight or colour hair to cover the gray, but beware: some people are sensitive to the chemicals in dyes. The result could be an itchy, burning scalp.