Hypermobility spectrum disorders (HSD) are connective tissue disorders that cause joint hypermobility, instability, injury, and pain. Other problems such as fatigue, headaches, gastrointestinal issues, and autonomic dysfunction are also often seen as part of HSD. There are four types of HSD based on the type of joint hypermobility present. In children, generalized HSD is divided into based on the symptoms present. The different types of hypermobility spectrum disorder are often collectively call