Heatstroke in summer usually does not cause gastrointestinal symptoms such as diarrhea, nausea, vomiting, etc. The symptoms of heatstroke are mainly in the circulatory system and central nervous system damage, and the clinical symptoms can vary according to the type of heatstroke. 1. aura heatstroke: the patient will have dizziness, headache, weakness, rapid heartbeat, inattention, uncoordinated movements, thirst, excessive sweating, etc. The body temperature is usually normal, or there is a mild increase. 2. 2. Mild heatstroke: Patients will show an obvious aggravation of the symptoms of heatstroke, the body temperature will rise significantly, 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 limbs, blood pressure drops, pulse rate increases and other signs of deficiency; 3. Over 41℃ or more hyperthermia, no sweating, and gradual onset of impaired consciousness. Patients with heat stroke are usually related to the environment and their own physical condition. Patients with heat stroke basically live in an environment with high temperature or hot sun, sometimes the temperature does not reach more than 35℃, but due to high humidity and poor ventilation, the performance of heat stroke can also occur. In terms of personal physical condition, heat stroke usually occurs in patients who are old and weak, overly tired, physically obese, drinking a lot of alcohol, starving, losing water and salt, and wearing tight, impermeable clothing. For patients with heatstroke, if it is aura heatstroke or mild heatstroke, they can usually recover on their own by removing themselves from the hot environment and drinking cool salt-containing beverages and other measures. If the patient shows a significant drop in blood pressure and deficiency, glucose and saline can be supplemented through the intravenous route, and for severe and serious heat stroke patients need to be promptly seen by a hospital.