What are the symptoms of heatstroke?

The symptoms of heatstroke can be categorized into the following types according to their severity: 1. **Early-stage heatstroke**: Body temperature may be normal or slightly elevated (≤37.5°C), accompanied by symptoms such as headache, dizziness, thirst, profuse sweating, weakness in the limbs, and difficulty concentrating. 2. **Mild heatstroke**: Body temperature rises above 38°C, along with symptoms such as flushed face, chest tightness, hot dry skin, nausea, vomiting, decreased blood pressure, and rapid pulse. At this stage, the person is still conscious. 3. **Severe heatstroke**: Body temperature may reach above 40°C, with symptoms including absence of sweating, impaired consciousness, coma, muscle spasms, seizures, difficulty breathing, and even multiple organ failure. This type has a high mortality rate. Among these, heat cramps are characterized by painful muscle spasms; heat exhaustion presents with profuse sweating, extreme thirst, and fatigue; and heatstroke is the most severe condition, requiring emergency treatment. Heatstroke symptoms progress from mild to severe and must be identified promptly and managed accordingly.