Looking to lead a stronger, healthier life?
Sign up for our Wellness Wire newsletter for all sorts of nutrition, fitness, and wellness wisdom.

Now we’re in this together.
Thanks for subscribing and having us along on your health and wellness journey.

See all Healthline's newsletters »


The hand has eight carpals. These small bones comprise the wrist area between the bones of the forearm and the phalanges, or fingers, of the hand. The lunate is one of these eight carpal bones. These carpals are arranged in two rows, and the lunate is located in the row closest to the radius and ulna. The lunate touches four other carpal bones, which are the scaphoid, the capitate, the hamate and the triquetral bones. The name comes from the Latin word for moon, and the bone derives this name from its shape. It resembles that of a crescent moon. Because of its location within the wrist, the lunate is often the most dislocated of all the carpals. Also, it is susceptible to Kienbock's disease, a form of avascular necrosis. In this condition, if blood supply dwindles, the bone's health diminishes due to tissue death. As a result, fracture is possible. If Kienbock's disease is preset, surgical intervention becomes necessary.

Written and medically reviewed by the Healthline Editorial Team
Co-developed by:

In Depth: Lunate

Debugging Tools

Level: 5
Frame: 16
Toggle Hotspot
VP Data Tool
HexTable json from Steve
Steve's ajax layer update call:
[still on original layer]

Ad values:

adModel.dfpAdSite: hn.us.hl.bm.x.x.x
adParams['k1']: othermusculoskeletaldisorders,semilunar_bone,8002608

More on BodyMaps

Take a Video Tour

Learn how to rotate, look inside and explore the human body. Take the tour

BodyMaps Feedback

How do you like BodyMaps? How can we improve it?