Most likely the doctor will make the diagnosis from a
medical history and physical examination.
- The doctor may also draw blood for testing if he or she feels the infection is severe enough to be in the bloodstream or to check for an elevated white blood cell count.
- The doctor also may order an
X-ray or other imaging study of the area if there is concern that a foreign object is in the skin or that bone underneath is infected.
- The doctor may try to draw fluid from the affected
area with a needle and send the fluid to the laboratory for a culture.
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