Yes, white eyelashes are relatively rare, especially outside of older age.
While the development of gray or white hair, including eyebrows and eyelashes, is a natural part of aging, seeing white eyelashes in younger individuals is less common. The process of hair losing its pigment is due to a decrease or absence of melanin production in the hair follicles.
Here's a breakdown:
- Aging: As we age, melanin production naturally declines, leading to graying or whitening of hair, including eyelashes and eyebrows. This is the most common reason for white eyelashes.
- Genetics: Just like hair color, genetics play a significant role. Some individuals may be predisposed to experiencing pigment loss earlier than others.
- Medical Conditions: Certain medical conditions can cause premature graying or whitening of hair, including eyelashes. Examples include:
- Vitiligo: This autoimmune disorder causes loss of pigment in patches of skin and hair.
- Thyroid disorders: Thyroid imbalances can sometimes affect hair pigmentation.
- Alopecia areata: This autoimmune condition causes hair loss, and when hair regrows, it may be white.
- Nutritional Deficiencies: Deficiencies in certain vitamins and minerals, such as vitamin B12, can contribute to premature graying.
- Medications: Some medications may have side effects that include hair depigmentation.
Therefore, while white eyelashes are a common occurrence in older adults, their presence in younger people is less frequent and may warrant further investigation, especially if other symptoms are present.