Hitchhiker’s thumb can be present in people with diastrophic dysplasia, a condition that affects cartilage and bone development. People with the condition may also have short limbs, club foot, and/or ...

If you do crack your knuckles, try to be gentle. And if you have pain, get your joint checked out before popping it again. Can you pull the finger out of the joint by cracking your knuckles?

That unusual bend in your thumb isn't a cool party trick. Discover what hitchhiker's thumb might reveal about your health and ...