Myalgia - Definition

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The term myalgia signifies a prolonged pain of varying intensity, which is localized or widespread, affecting any striated skeletal muscle of the human body. These types of muscles have the capacity to contract, notably including muscles of the chest, arms, and legs, and are voluntarily controlled, unlike what we call smooth muscles, which are involuntary. The pain can manifest spontaneously as muscle ache, such as that experienced after strenuous activity or associated with the flu. There can be other, extremely varied underlying causes, which are almost always benign.