<P> Hypermobility , also known as double - jointedness , describes joints that stretch farther than normal . For example , some hypermobile people can bend their thumbs backwards to their wrists , bend their knee joints backwards , put their leg behind the head or perform other contortionist `` tricks '' . It can affect one or more joints throughout the body . </P>
<P> Hypermobility , also known as double - jointedness , describes joints that stretch farther than normal . For example , some hypermobile people can bend their thumbs backwards to their wrists , bend their knee joints backwards , put their leg behind the head or perform other contortionist `` tricks '' . It can affect one or more joints throughout the body . </P>
why do my fingers bend so far back
why do my fingers bend so far back
Hypermobility
Hypermobility