Myalgia rheumatica—usually called polymyalgia rheumatica (PMR)—is considered when an adult over 50 develops new pain and stiffness around both shoulders, often with pain in the neck or hips. Morning stiffness and difficulty with everyday movements are common. There is no single test that confirms PMR: clinicians weigh your symptoms, examination and test results, while checking for other causes.
How Myalgia Rheumatica Is Assessed
PMR usually begins over days or weeks, with aching in the upper arms, shoulders and pelvic girdle. Getting dressed, reaching overhead or rising from a chair may become difficult because of pain and stiffness. Some people also feel tired or unwell. These symptoms are a reason to arrange a medical assessment, not a diagnosis by themselves: inflammatory arthritis, infection and other conditions can look similar.
Your clinician will ask when symptoms began, how they affect movement and whether you have symptoms that could point to giant cell arteritis (GCA). A physical examination helps assess the pattern and look for other explanations. PMR classification criteria are designed for research; they are not a stand-alone diagnostic test for an individual.
Blood tests commonly include erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP), which measure inflammation. These are often raised in PMR, but they are not specific: inflammation from other illnesses can raise them too. A normal result does not settle the question either. Other tests may help check for alternative diagnoses and provide a baseline before treatment.
Imaging, particularly ultrasound, may support the assessment in some cases. It can show inflammation around the shoulder, but it does not replace clinical judgment. If symptoms, examination or test results do not fit well, the clinician may reconsider the diagnosis or seek specialist advice.
Why Steroid Improvement Does Not Prove PMR
Glucocorticoids such as prednisone (called prednisolone in the UK and some other countries) often ease PMR symptoms quickly. That response can support a diagnosis, but it cannot confirm one: steroids reduce inflammation in other conditions too, and some people with PMR do not respond completely or as expected. A trial of steroids without a full assessment can therefore delay recognition of another illness.
For PMR, clinicians commonly start with a moderate glucocorticoid dose and then reduce it gradually as symptoms improve. Recommendations describe an initial prednisone-equivalent range of 12.5–25 mg per day, but the right plan depends on the person and local clinical guidance. Treatment often lasts many months and can extend for years. Do not start, change or stop steroids without your prescriber’s guidance.
Tapering, Relapse And Side-Effect Checks
A taper is adjusted over time rather than stopped as soon as you feel better. At follow-up visits, your clinician can review pain, stiffness, daily function and inflammatory markers, and adjust the dose if symptoms return. Relapse is common: the Norwegian Society of Rheumatology’s 2024 recommendations summarize estimates that about 43% of patients have at least one relapse within a year of starting glucocorticoids, and around half still need them after two years. Those figures are estimates, not a prediction for any one person.
Long-term glucocorticoids can affect bone strength, blood sugar, blood pressure, mood and infection risk. Regular reviews give you and your clinician a chance to weigh symptom control against these risks and discuss bone health and other monitoring. If your symptoms return during a taper, contact your care team rather than changing the dose yourself. For a closer look at the process, read what to expect during PMR diagnosis and steroid tapering.
GCA Warning Signs Need Urgent Assessment
PMR and GCA are related conditions, and GCA can occur with or without typical PMR symptoms. Seek urgent medical assessment for a new, persistent headache, scalp tenderness, pain or fatigue in the jaw while chewing, or new double vision or blurred vision. Sudden loss of vision is an emergency. GCA can threaten sight, so suspected cases need prompt assessment and treatment. Learn more about giant cell arteritis warning signs.
If you have new shoulder and hip-girdle pain with stiffness, especially after age 50, arrange an appointment so a clinician can assess the pattern and consider other causes. Seek urgent care if any GCA warning signs appear.
