Premature greying is the early appearance of gray or white hair before the typical age of onset. It occurs when hair follicles produce less melanin, the pigment responsible for hair color. Premature greying can affect both men and women and may have genetic, nutritional, or medical causes.
Symptoms
- Gray or white hair appearing at an early age
- Gradual increase in the number of gray hairs
- Changes in natural hair color and texture
Causes
- Genetic or hereditary factors
- Vitamin deficiencies (especially Vitamin B12, D, iron, and folic acid)
- Stress and lifestyle factors
- Thyroid disorders
- Autoimmune conditions
- Smoking and oxidative stress