One of the common signs of influenza (flu) is body aches. Flu results in inflammation, which damages the nerves and muscle tissue, resulting in widespread aches and pains. This article outlines why the flu can cause body aches and who may be more at risk. It also outlines how to relieve these aches and when visiting a healthcare provider is necessary. For same-day flu diagnosis and treatment, visit the walk-in clinic at AFC Urgent Care ...