What is a hypermobility syndrome? What is hypermobility? Hypermobility describes how bendy or flexible you are. You may hear doctors and other professionals working use it. Lots of people are hypermobile or flexible and if you look around your classroom you will see other bendy children. Being hypermobile or flexible is not always a bad thing. It can be an advantage in activities such as dance, gymnastics or music. Lots of sports and pop stars are hypermobile. Cheryl Cole and Michael Phelps are very flexible people and they are both hugely successful in their careers. This may even be the reason why you are very good at a sport or activity.People can train to be hypermobile like ballerinas or swimmers or you can be born with it. If you are born bendy often one of your parents or even your brothers or sisters may be flexible too! What is a hypermobility syndrome? Sometimes being hypermobile or bendy can cause problems or ‘symptoms’. This is what the word ‘syndrome’ means. Syndrome = ‘other symptoms’ You may get pain in your joints or muscles and feel very tired. Some children have problems like stomach aches, illness feeling sick, dizzy or other symptoms which your parents can read about on the other parts of the website. Some children only have a small problem with a very bendy joint which is hurting them and making them feel tired. These children may get better once they have had some physiotherapy to make the joint strong again. Some children have what doctors call 'hypermobility spectrum disorder' (HSD) or other conditions which we call ‘Connective Tissue Disorders’. Connective Tissue Disorders include Ehlers-Danlos syndromes, Marfan syndrome and Osteogenesis Imperfecta. There are other types too.