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Polymyalgia (rheumatica) (meaning "pain in many muscles" in Greek), abbreviated as PMR, is an inflammatory condition of the muscles, which causes pain or stiffness, usually in the neck, shoulders, and hips. The pain can be very sudden, or can occur gradually over a period of time.

Most PMR sufferers wake up in the morning with pain in their muscles; however, there have been cases in which the patient has developed the pain during the evenings. Patients who have polymyalgia rheumatica may also have temporal arteritis, a potentially dangerous inflammation of blood vessels in the face. PMR usually goes away within a year or two after treatment.

PMR is usually treated with long courses of oral steroid.

Symptoms and signs

There is a wide range of symptoms that indicate if a person has polymyalgia rheumatica. The symptoms include pain and stiffness in the muscles, usually in the neck, shoulders, and hips. The pain is moderate to severe, and may inhibit the activity of the person. These symptoms usually occur in the morning, or after sleeping. Fatigue and lack of appetite are also indicative of polymyalgia rheumatica. Lack of appetite could lead to unintentional weight loss. Anemia is another sign of polymyalgia rheumatica. An overall feeling of illness and a slight fever are commonly seen.

Studies have shown that about 15% of people who are diagnosed with polymyalgia rheumatica also have temporal arteritis, and about 50% of people with temporal arteritis have polymyalgia rheumatica. Some symptoms of temporal arteritis include severe headaches, scalp tenderness, jaw or facial soreness, distorted vision or aching in the limbs caused by decreased blood flow, and fatigue.