Companion Animals

Heatstroke in Dogs: Prevention and Emergency Management

How to prevent heatstroke and manage this welfare emergency that kills hundreds of dogs annually.

Key Facts

Heatstroke kills hundreds of dogs in the UK annually — the majority from hot cars
Dogs cannot sweat through their skin — panting is their primary cooling mechanism
Brachycephalic breeds are at highest risk — their compromised airways impair heat dissipation
Body temperature above 41 degrees C causes organ damage; above 43 degrees C can be fatal

Welfare Considerations

Heatstroke causes rapid welfare deterioration — from panting and distress to collapse, organ failure, and death within minutes in extreme heat. Prevention is the primary welfare intervention — never leaving dogs in cars on warm days, providing shade and water, and avoiding exercise in the heat of the day. Emergency management requires rapid cooling and immediate veterinary care.

What You Can Do

Never leave a dog in a car on a warm day — even mild temperatures can be deadly
Cool a dog showing heatstroke signs immediately with cool (not cold) water and seek emergency vet care
Walk dogs early morning or late evening during hot weather — avoid midday exercise