Hypermobile joints are common and occur in about 10 to 25% of the population,[3] but in a minority of people, pain and other symptoms are present.

The condition tends to run in families, suggesting a genetic basis for at least some forms of hypermobility.

Hypermobility syndromes can lead to chronic pain or even disability in severe cases.

Or, conversely, they may display superior abilities due to their increased range of motion for fingering, such as in playing a violin or cello.

During pregnancy, the body releases relaxin and certain hormones that alter ligament physiology, easing the stretching needed to accommodate fetal growth as well as the birthing process.

Some pregnant people who have one of these disorders find they need to use a bedpan and/or a wheelchair during pregnancy.

Experts in connective tissue disorders formally agreed that severe forms of Hypermobility Syndrome and mild forms of Ehlers-Danlos Syndrome Hypermobility Type are the same disorder.

The arthrochalasia, classic, hypermobility and vascular forms usually have an autosomal dominant pattern of inheritance.

Autosomal dominant inheritance occurs when one copy of a gene in each cell is sufficient to cause a disorder.

The dermatosparaxis and kyphoscoliosis types of EDS and some cases of the classic and hypermobility forms, are inherited in an autosomal recessive pattern.

Medical professionals varied in their interpretations of the results; some accepting as low as 1/9 and some 4/9 as a diagnosis of HMS.

It does not appear to be a valid scale when used for this purpose: there exists a statistically significant correlation between the score and the athelete's passive shoulder and hip ranges of motion, but the difference is small enough to be buried by measurement error.

Heat and cold treatment can help temporarily to relieve the pain of aching joints and muscles but does not address the underlying problems.

Narcotics are not recommended for primary or long-term treatment and are reserved for short-term use after acute injury.

For some people with hypermobility, lifestyle changes decrease symptom severity.