Patients with infectious shock do not always present with early manifestations of hypotension. The blood pressure monitored at this time may be normal or slightly low, and most patients will show symptoms of sympathetic excitation, irritability, anxiety, pallor of the face and skin, mild cyanosis of the lips of the mouth as well as the nail bed, and wet and cold extremities, accompanied by nausea, vomiting, decreased urine output, increased heart rate, and deepened and accelerated respiration. As the disease progresses, there is increased capillary permeability, plasma extravasation, microcirculatory stasis, and insufficient myocardial damage to return blood volume, which can lead to a relative lack of circulating intravascular volume and the manifestation of hypotension. If shock can be detected and treated in time at an early stage, it can greatly reduce mortality. It is not the presence of a drop in blood pressure in patients to diagnose infectious shock, in the course of the disease to be combined with other vital signs, to look at the patient’s consciousness, breathing and other conditions.