Severe sepsis, also known as septicemia, has many causes, mainly related to infections, such as those from the respiratory, digestive or urinary tracts, and others from the body surface. Infections in various parts of the body can cause sepsis if they are not controlled in time. Sepsis is a serious health disorder and the success rate of its treatment has been improving as its nature is being analyzed and studied in greater depth. At present, the success rate of sepsis can reach more than 60% with the right treatment at the right time.