Dog Heat Stroke: Early Signs, Immediate Cooling Steps, and Prevention
Recognise overheating before collapse—and cool safely while you head to emergency care.
Heat stroke occurs when a dog’s body temperature rises beyond safe control—often from hot cars, humid exercise, or brachycephalic airway limits. Signs include heavy panting, bright red or pale gums, drooling, weakness, vomiting, and collapse. Move to shade or air conditioning, begin controlled cooling with room-temperature water, and go to an emergency clinic even if they improve.
Key takeaways
- Hot cars kill quickly—never leave dogs inside.
- Flat-faced breeds overheat faster.
- Cooling helps, but veterinary assessment is still required.
First response
- Remove from heat immediately
- Offer small amounts of water if alert
- Wet the body with cool (not ice-cold) water and use airflow
- Transport to emergency care without delay
- Collapse, seizures, or unresponsiveness
- Gum colour changes or continuous vomiting
- Bloody diarrhoea after overheating
Building a summer safety plan?
Our Healthcare Consultations pathway helps you organise breed-specific risk questions before hot weather peaks.
Educational content only. This page does not diagnose disease or replace care from a licensed veterinarian. Seek in-person help for emergencies or worsening symptoms.