Myalgia

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**Myalgia**
*Classifications and external resources*
ICD-10	M 79..1
ICD-9	729.1

Myalgia means "muscle pain" and is a symptom of many diseases and disorders. The most common cause for myalgia is either overuse or over-stretching of a muscle or group of muscles. Myalgia without a traumatic history is often due to viral infections. Longer-term myalgias may be indicative of a metabolic myopathy, some nutritional deficiencies or chronic fatigue syndrome.

1 Causes
2 See also

[edit] Causes

This list is incomplete; you can help by expanding it.

[edit] Diseases/Disorders

Avian influenza, Carnitine palmitoyltransferase II deficiency, Chronic fatigue syndrome, Common cold, Community-acquired pneumonia, Coccidioidomycosis, Conn's syndrome, Devic's disease, Endemic typhus, Exercise intolerance, Familial Mediterranean fever, Fibromyalgia, HIV, Hypokalemia, Infectious mononucleosis, Legionellosis, Leptospirosis, Lupus erythematosus, Lyme disease, Marburg virus, Mastocytosis, Meningitis, Monkeypox, Multiple sclerosis, Myositis, Peripheral neuropathy, Pharyngitis, Pneumonia, Polyarteritis nodosa, Prostatitis, Psittacosis, Q fever, Rift Valley fever, Severe Acute Respiratory Syndrome, Toxic shock syndrome, Trichinosis, Typhoid fever, Upper respiratory tract infection, Viral pneumonia, Eosinophilia myalgia syndrome, West Nile, Chikungunya

[edit] Medications

Acrylamide, Darbepoetin, Procainamide, Quinupristin/dalfopristin, Sumatriptan, Vardenafil, Statins, Zetia, Zomig, [BONIVA(ibandronate sodium)]

[edit] As a Response to Vaccination

A moderate occurrence (25-35%) of myalgia in recipients of tetanus vaccination is identified in the US; it presents in the large muscle groups and at the subcutaneous injection site. When a patient returns with these symptoms (which include fever, poor appetite and lethargy), a clinician who fails to notice the recent tetanus vaccination on the patient's chart is in danger of making a life-threatening misdiagnosis.

An item of note is that in heart patients using selective β₁-blockers such as metoprolol, incidence of myalgia after tetanus vaccination is significantly higher.