The lunula is the visible portion of the distal nail matrix that extends beyond the proximal nailfold. It is white, half-moon-shaped, appears by week 14 of gestation, has unique histologic features. The lunula has a primary structural role in defining the free edge of the distal nail plate.

Where is the lunula located what is its purpose?

The lunula is a small milky-white crescent, located at the beginning of our nail bed and is part of our nail matrix. The nail matrix is responsible for our nail growth to constantly create new skin cells, which also produce keratin.

Why can't I see the lunula on my nails?

Sometimes, you may only be able to see lunula on your thumbs, or possibly not on any fingers at all. In these cases, the lunula is most likely hidden under your skin. Though the connection is not completely understood, an absent lunula can indicate anemia, malnutrition, and depression.