Diagnosing RLS involves a thorough medical history and evaluation of symptoms. Doctors may use criteria established by the International Restless Legs Syndrome Study Group (IRLSSG), which include: an urge to move the legs often accompanied by uncomfortable sensations, symptom onset or worsening during periods of rest, partial or total relief by movement, and symptoms that are worse in the evening or night. Blood tests and other diagnostic methods may also be used to rule out other conditions.
