Take a look at your thumb and you'll see this: it's the light half-moon shape at
the very bottom of your nail.
Every nail has a lunula, but it's easiest to see them on thumbnails.
Note: All information is for educational purposes only. For specific medical advice,
diagnoses, and treatment, consult your doctor.
Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock,
The Barbara Bush Children's Hospital is a department