Patients can determine whether they may have heatstroke or not by the presence of high temperature or poor ventilation in their surroundings and whether their bodies show corresponding symptoms, while still paying attention to exclude the interference of other diseases. If the situation is more serious, it is recommended to seek medical attention in a timely manner. 1, environmental factors: first of all, patients with heat stroke are located in a high-temperature environment, the temperature is usually more than 35 ℃, or the environment of the hot sun, sometimes although the temperature does not reach high temperature, but due to high humidity and poor ventilation of the surrounding environment, which can also cause heat stroke; 2, abnormal performance: aura of heat stroke patients will appear dizziness, headache 2, abnormal manifestations: Patients with aura heat stroke may experience dizziness, headache, thirst, sweating, and weakness, fatigue, rapid heartbeat, inattention, uncoordinated fine movements, etc. Body temperature is usually normal or mildly elevated. Patients with mild heatstroke will have increased symptoms of aura heatstroke, more than 38 ℃, the face can appear flushed or pale, patients have a lot of sweating, skin burning sensation, some patients will appear wet and cold extremities, blood pressure drop, pulse rate increase and other signs of deficiency. Severe heat stroke is mainly manifested by a high body temperature that will exceed 41 ℃ or more, the patient more sweatless, and even will appear impaired consciousness; 3, other cases: determine heat stroke also need to exclude other diseases, such as encephalitis, meningitis, organophosphorus pesticide poisoning, bacterial dysentery, etc.. Generally older, weaker, fatigue, obesity, excessive alcohol consumption, as well as hunger, water loss, wearing tight and impermeable clothing and pants, etc. can easily cause heat stroke. Patients with aura heat stroke and mild heat stroke usually recover on their own after being removed from the hot environment, resting in a cool and quiet place, and taking refreshing drinks with salt. If there is a tendency for blood pressure to drop, glucose and saline can be administered, and patients with elevated body temperature require prompt physical cooling. Patients with severe heat stroke need to be removed from the hot environment immediately and go to the hospital for prompt medical attention.