Tag: Myotonia

According to the National Organization for Rare Disorders, Stiff Person Syndrome is one rare condition that can cause muscles to become progressively rigid and hard. A symptom of muscles getting hard should always be taken seriously, as it can indicate underlying neurological, autoimmune, or genetic disorders.

Medically, myodynia is the term for muscle pain, also known as myalgia, which can affect a localized area or the entire body. It is not a diagnosis in itself, but a symptom that can result from a wide range of issues, from simple overuse to more complex underlying conditions.