Hitchhiker's Thumb: Secret To A Stronger Grip?

23 sep 2023 hitchhikers thumb is when your thumb is very flexible and can bend backward, sometimes up to 90 degrees. Learn more about what causes it, what conditions are. 1 feb 2021 hitchhiker's thumb is otherwise known as distal hyperextensibility of the thumb. This is because of the genetic traits that make a person bend his thumb backward while stretching. To spot hitchhikers thumb, check how the thumb looks when straightened.

You can easily tell by observing the thumbs angle.