Why do people vomit due to heatstroke and what should they do?
Recently, high temperatures have persisted in many parts of the country, and topics related to heat stroke have become the focus of heated discussions across the Internet. Vomiting after heatstroke is one of the common symptoms, but many people don’t know how it works and how to deal with it. This article will combine medical knowledge and hot spots across the Internet to provide you with a detailed analysis of the causes and treatment measures of heat stroke vomiting.
1. Physiological mechanism of heatstroke and vomiting

When the human body is exposed to a high temperature environment for a long time, the body temperature regulation center will be disordered, leading to the following chain reactions:
| physiological stage | Specific performance | What causes vomiting |
|---|---|---|
| initial compensation period | Profuse sweating and dilated blood vessels in the skin | Loss of electrolytes leading to gastrointestinal cramps |
| decompensation period | Core body temperature>38℃ | Cerebral ischemia stimulates vomiting center |
| severe stage | Body temperature>40℃ | Projectile vomiting caused by multiple organ dysfunction |
2. Statistics on hot searches across the entire network (last 10 days)
| Platform | Hot search keywords | Search volume (10,000) | associated symptoms |
|---|---|---|---|
| #heatstrokefirst aid# | 1280 | Vomiting accounts for 42% | |
| Douyin | Tips for preventing heatstroke outdoors | 890 | Vomiting-related videos have been viewed 120 million times |
| Baidu | What to do if you suffer from heatstroke and vomiting | 560 | Increased 310% week-on-week |
3. Grading treatment plan
According to the "Expert Consensus on Emergency Diagnosis and Treatment of Heat Stroke", the following measures are recommended:
| Symptom level | Vomiting characteristics | Disposal method |
|---|---|---|
| mild heat stroke | Nausea with a little vomiting | 1. Move to a cool place 2. Supplement salty drinks 3. Apply cold compress to neck/armpits |
| moderate heat stroke | Repeated vomiting and inability to eat | 1. Oral rehydration solution III 2. Use antiemetics (such as metoclopramide) 3. Ice pack physical cooling |
| Severe heat stroke | Projectile vomiting with disturbance of consciousness | Get to the hospital immediately and stay in a side-lying position to prevent suffocation. |
4. Three major misunderstandings that are hotly discussed on the Internet
Combined with the popular science content of doctors on various major platforms, special attention should be paid to:
1.Wrong approach:Force feeding to stop vomiting
Scientific explanation:Vomiting is the body's protective mechanism. Forcibly eating may increase the burden on the gastrointestinal tract.
2.Wrong approach:Drink iced drinks
Scientific explanation:Sudden cold stimulation may cause gastrointestinal cramps. It is recommended to drink room temperature electrolyte water
3.Wrong approach:Wipe with alcohol to cool down
Scientific explanation:Alcohol is absorbed through the skin and may worsen central nervous system depression
5. Big data on preventive measures
According to the latest heatstroke prevention guidelines issued by the National Health Commission:
| Precautions | efficient | Implementation points |
|---|---|---|
| Replenish 200ml of water every hour | 89% | Electrolyte water containing sodium, potassium and magnesium is best |
| Wearing sun protection equipment | 76% | UPF50+sun protection clothing+wide brim hat |
| Avoid going out during hot weather | 94% | 10:00-16:00 Try to do indoor activities |
6. Special reminder
Recently, "high temperature plus high humidity" weather has occurred in many places. In this environment, heatstroke and vomiting are more likely to occur. When the wet bulb temperature (a measure of hot and humid environment) exceeds 30°C, the evaporation efficiency of human sweat decreases and the body temperature regulation ability is significantly reduced. It is recommended to pay attention to the wet bulb temperature index through the weather APP and take preventive measures.
If you have symptoms such as vomiting that lasts for more than 2 hours, blood or coffee-like substances in the vomit, or convulsions, you must seek medical attention immediately. These may be red flags for heat stroke, and delays in treatment may lead to irreversible organ damage.
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