2. Why is it white in colour?
This part looks white because it is the fifth basal layer of the epidermis and it actually covers the blood vessels that are underneath.
3. Why do you need to know about the lunula?
Lunulae (singular; lunula) are considered to be reliable indicators of injury or serious health issues. Differences in the shape, form, color can denote cardiovascular diseases, renal diseases, traumatic injuries. For example, lack of lunula indicates anemia and malnutrition while a pale bluish lunula indicates possible diabetes.
If one’s lunula has reddish smudges he or she maybe suffering from cardiovascular diseases.
4. Why do some people have it and some don’t?
Usually, lunulae are most visible on the thumb, but not everyone’s lunula is visible. The thickened layer of the skin surrounding the fingernails and toenails (eponychium), may partially or completely cover the lunula.
