How Does Double Jointedness Occur?

How Does Double Jointedness Occur?

Some people with hypermobility syndrome

hypermobility syndrome
Hypermobile joints are common and occur in about 10 to 25% of the population, but in a minority of people, pain and other symptoms are present. This may be a sign of what is known as joint hypermobility syndrome (JMS) or, more recently, hypermobility spectrum disorder (HSD).
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are born with ball-and-socket joints that have unusually shallow sockets, which allow the domed bone more mobility. The shallower a socket, the more "give" it provides to the domed bone, which increases that joint's mobility.

What causes double Jointedness?

Hypermobility of the joints occurs when the tissues holding a joint together, mainly ligaments and the joint capsule, are too loose. Often, weak muscles around the joint also contribute to hypermobility.

How are double joints formed?

Limited by ligaments

Working together, the bones and ligaments limit how much your joints can move. If you are double jointed, it might mean that the bones are round at the end, like two balls, or that the ligaments which help hold the bones in place are loose, or even absent.

Maya Lin-Takahashi
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Maya Lin-Takahashi

Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.