What does the half moon at the base of the nails mean?

When to seek medical help right away?
If the lunula suddenly changes color, disappears completely, or becomes unusually deformed—especially if accompanied by signs such as intense fatigue, brittle nails, a pale complexion, or difficulty breathing—it’s best to speak to a professional. The doctor may suggest a simple blood test to assess the situation.

People suffering from endocrine disorders, heart problems, or diabetes also benefit from incorporating nail monitoring into their routine care.