Sepsis is a complication that arises when the human body mounts an indiscriminate, and overt, response to an infection. Sepsis is a medical emergency. If not diagnosed and treated early, sepsis can lead to irreversible tissue damage, septic shock, multiple organ failure and potentially death. Septic shock is a severe type of sepsis in which the circulatory, cellular, and metabolic abnormalities are associated with a greater risk of mortality than with sepsis alone. More information