Some people have thumbs that are hypermobile. This means they bend backward beyond the typical range. The medical term for hitchhiker’s thumb is distal hyperextensibility. It is also known as Z-shaped ...

It can be alarming to lose feeling in any part of your body. But losing feeling in one or both of your thumbs might seem especially odd. Thumbs help us hold cups, open bottles, and type on our ...

Give yourself a thumbs-up, then take a closer look. If your thumb’s tip extends back toward your knuckle more than 50 degrees, you may have hitchhiker’s thumb. The nickname replaces its more technical ...

All the parts of our bodies share an inherent connectivity. This goes much further than “the foot bone’s connected to the … leg bone”. For instance, both hands and feet are connected to a constantly ...

The thumb is one of five digits on each hand, but it has a different shape and function from the other digits. However, most medical guides refer to the thumb as a finger. Also known as the pollex or ...