Sepsis may lead to death and needs to be analyzed in detail. Sepsis is usually caused by a decline in immunity and other reasons, resulting in the entry of virulent pathogens into the human bloodstream, triggering systemic infections and multi-systemic lesions. If the onset of the disease belongs to the elderly and weak, a large number of toxins enter the nervous system and blood system, which can cause the patient to develop organ failure, shock, multiple infections and other serious complications. In the above cases, then the possibility of cure is small, and the general prognosis is poor and life-threatening. However, patients with sepsis who receive active and effective treatment at the early stage of the disease, take symptomatic treatment according to the cause of the disease, and have a good physical condition and are not accompanied by underlying diseases, such as hypertension, diabetes mellitus, coronary heart disease and so on, have a certain chance to reach the standard of clinical cure. At present, the pathogenesis of sepsis has not been clarified, the prevention of sepsis needs to do a good job in all aspects of preventive work, patients should follow the doctor’s instructions to standardize the treatment, and do a good job of personal hygiene.