Joint hypermobility syndrome is where you get pain and stiffness from having very flexible joints.
Symptoms of joint hypermobility syndrome include joint pain and stiffness, and regularly spraining or dislocating your joints.
Treatment for joint hypermobility syndrome usually involves painkillers and strength exercises to protect your joints.
Joint hypermobility syndrome usually runs in families. The joints are loose and the skin is stretchy because the tissues they're made of are weak.