Mild heatstroke is often characterized by palpitations (rapid heartbeat, often accompanied by panic), chest tightness, flushing, dizziness, headache, sweating and fatigue, and rising body temperature. Heatstroke usually refers to the discomfort caused by high temperature and humidity in an unventilated environment, coupled with the dysfunction of the thermoregulatory center or sweat glands, which ultimately leads to a large amount of loss of water and electrolytes. When mild heatstroke occurs, the body’s heat production is higher than heat dissipation, resulting in the accumulation of heat, excessive heat damage to the body, resulting in increased body temperature, and a series of dizziness, tinnitus, and other symptoms mainly in the central nervous system. Therefore, the first step in heat stroke is to remove the patient from the hyperthermic environment to avoid sustained damage to the body. Mild heat stroke is usually reversible and has a good prognosis. If the heatstroke sweats too much, resulting in the loss of water and electrolytes in the body, it is easy to develop dehydration, hypokalemia and other conditions, resulting in the patient’s thirst, lower limb weakness and other symptoms, at this time you need to timely replenish the body’s water and electrolyte composition. If heatstroke occurs, you should go to the hospital as soon as possible and get standardized treatment so as not to delay the condition.