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 ...

When you give a thumbs-up and notice your digit bends backward at an unusually dramatic angle, you’re witnessing what medical professionals call “distal hyperextensibility” — though most people know ...

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 ...

An adult might suck their thumb due to stress, anxiety, or age regression. The effects of this habit over time may include blisters or issues with the teeth. Many children stop sucking their thumb at ...

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 cause can depend on the exact location of the pain, how it feels, and how often you feel it. Common treatments include medication or physical therapy. In some cases, consistent pain in your thumb ...

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 ...