Muscle pain (also known as myalgia) is pain or tenderness in one or more muscles which can involve any area of the body. The pain can be localised to one muscle group or involve multiple muscle groups. Muscle pain due to injury or overuse is most commonly localised to one area.
Symptoms of muscle pain can include tenderness, swelling, redness or fever.
Localised muscle pain is commonly caused by
- Overuse of a particular muscle group
- Repetitive strain injuries
- Sprains and strains
- Muscle cramps
- Excessive physical activity
Systemic muscle pain (pain affecting multiple muscle groups) can be caused by
- Medication side effects
- Nutrient deficiencies
- Electrolyte imbalance
- Chronic medical conditions (for example chronic fatigue, lupus, multiple sclerosis)