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Complications could include:
One life-threatening complication of infection is sepsis, which often occurs in people who are elderly or have weak immune systems. Patches of discolored skin is a symptom of severe sepsis.
Gangrene is when part of your body tissue dies. This often occurs because the tissue is not getting enough blood from your circulatory system.
Shock is a state of physical shutdown that your body enters shock when there's not enough blood circulating blood. Call 911 if you experience confusion, clammy skin, chest pain, and nausea.