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Widespread muscle aches
Category: Muscles, Bones & Joints · All muscles & joints symptoms
What it can feel like
Widespread muscle aches mean pain felt across much of the body — both sides, above and below the waist — often with profound fatigue, unrefreshing sleep and difficulty concentrating. When this pattern persists beyond three months without another explanation, fibromyalgia is the usual framework.
Possible causes
A symptom can have many causes, and most are not serious. The lists below group conditions this symptom can be associated with — common causes first. They are possibilities to discuss with a clinician, not a diagnosis.
Common causes
Widespread aching can be associated with fibromyalgia, poor sleep, stress and low mood, deconditioning, and recovery periods after viral infections. In fibromyalgia the pain-processing system itself becomes sensitised — tissues are not damaged, but the volume control for pain is turned up.
Other possible causes
Widespread aching can also be associated with an underactive thyroid, vitamin D deficiency, inflammatory conditions such as polymyalgia rheumatica (in over-50s), and medicines such as statins.
Red flags — when to seek help promptly
- Widespread pain with true muscle weakness, swallowing problems or a rash on the knuckles and eyelids
- New widespread pain over the age of 50 with headache or jaw pain when chewing
- Widespread pain with unexplained weight loss, fever or night sweats
- Widespread pain with numbness, pins and needles in a stocking-glove pattern
What a clinician may do
A clinician will examine for tender patterns versus inflamed joints, check strength, and run blood tests to exclude thyroid, vitamin and inflammatory mimics. Fibromyalgia is diagnosed on the pattern; treatment centres on sleep, graded exercise, and pain-management approaches rather than scans.
Watch: related videos
Examination and clinical videos from the MedicalVideos.com library relevant to this symptom. Some clinical footage is graphic — that is the nature of a medical video library.
Related guides on MedicalVideos.com
Frequently asked questions
If tissues aren't damaged, why does it hurt so much?
In fibromyalgia the central nervous system amplifies pain signals — a processing problem, not a tissue problem. That is why normal activity hurts and why treatments that calm the system (sleep, graded exercise, certain medicines) help more than rest or stronger painkillers.
Do I need scans to diagnose fibromyalgia?
Usually not — the diagnosis is clinical, based on the pattern of widespread pain with fatigue and unrefreshing sleep lasting over three months, after blood tests exclude the main mimics. Scans are reserved for atypical features.
Related symptoms — Muscles, Bones & Joints
Browse the W section of the A–Z list or return to the Symptoms A–Z hub.