Heatstroke in Cats
Written By Wag! Staff
Published: 11/12/2016Updated: 09/26/2024
Veterinary reviewed by Dr. Linda Simon, MVB MRCVS
Heatstroke in Cats - Symptoms, Causes, Diagnosis, Treatment, Recovery, Management, Cost
What is Heatstroke?
Heatstroke is characterized by an increase in body temperature and the inability of the body to regulate temperature. Cats are susceptible to heatstroke because they can only regulate their body temperature through panting or sweating from their foot pads. A pet that is left in a poorly ventilated area, unable to avoid direct sunlight, or without access to water can quickly succumb to heatstroke.
In severe cases, your cat's organs can begin to shut down and the condition can be life-threatening. If you suspect that your cat has heatstroke, seek veterinary attention immediately.
Heatstroke Average Cost
From 250 quotes ranging from $500 - $5,000
Average Cost
$2,500
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Symptoms of Heatstroke in Cats
Symptoms of heatstroke increase in severity as the condition progresses. They range from initial behavioral symptoms your cat will exhibit in an attempt to regulate body temperature, to symptoms indicating that organs are beginning to shut down and the nervous system has become impaired.
Early symptoms of heatstroke
  • Panting/drooling
  • Sweating from feet
  • Excessive grooming (to cool down)
  • Anxiety/restlessness
  • Elevated body temperature; 103-104 degrees Fahrenheit
Heatstroke
Causes of Heatstroke in Cats
Heatstroke occurs when a cat is unable to dissipate heat and keep their body temperature at a healthy level. Factors that contribute to this are:
  • High ambient temperature
  • Inability to access shade or escape direct sunlight
  • Non-ventilated environment, such as a vehicle
  • Lack of access to water
  • Excessive anxiety
  • Excessive exercise
Senior cats, kittens, and flat-faced cats such as Persians are more susceptible to heatstroke. Cats suffering from chronic or acute illness and obese cats are also more likely to be affected than others.
Diagnosis of Heatstroke in Cats
Your veterinarian will ask you about your cat’s activity and environment to determine whether heatstroke is a possibility. Tell your vet about factors such as exposure to hot conditions without ventilation, being unable to access shade or water, or excessive activity.
Your vet will take your cat’s body temperature to determine if it has become elevated. A cat's normal body temperature should be in the 100-102.5 degrees Fahrenheit range. A body temperature of 102.5-104 degrees Fahrenheit is elevated and a temperature of 105 degrees Fahrenheit or higher is life-threatening.
Blood work and urinalysis may be performed by your veterinarian to rule out whether an elevated temperature is due to infection as opposed to heatstroke.
Treatment of Heatstroke in Cats
If your cat is conscious and heatstroke is suspected, move them to a cool environment immediately and give them access to water. Do not force your cat to drink as this could result in choking. Consult a veterinarian as soon as possible.
If your cat is unconscious or has impaired consciousness, apply cool — not cold — water to your cat’s body, avoiding their head. Get your pet to a veterinarian immediately.
Your veterinarian will continue to cool your cat with cool water, but may also administer cool or room temperature intravenous fluid to decrease your cat's body temperature and counteract dehydration. Your veterinarian may also administer oxygen therapy, and a cool water enema.
Body temperature will be closely monitored every 5 minutes until it is in the normal range. Cooling methods will then be stopped to avoid over-cooling.
Your veterinarian may hospitalize your cat if organ damage is suspected, while some cats require medicine such as antibiotics.
If your cat's throat is swollen, which is possible with heatstroke, the vet may administer steroids to reduce inflammation. In addition, because blood clotting can be affected by severe heatstroke, your vet may check this through blood work and administer anticoagulants if required.
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Recovery of Heatstroke in Cats
If no organ damage has occurred, your cat should experience a full recovery. However, a cat that has suffered from heatstroke previously may be more prone to recurrence, so take care to ensure they are not exposed to factors that could cause heatstroke in the future.
You should also monitor your cat for possible complications from organ damage, especially if elevated body temperature was prolonged, including watching for blood in the urine which would indicate kidney damage. Seek veterinary help immediately if any signs of organ damage appear.
Heatstroke can be expensive to treat. If you suspect your cat is at risk of heatstroke, start searching for pet insurance today. Wag!’s pet insurance comparison tool lets you compare plans from leading companies like PetPlan and Embrace. Find the “pawfect” plan for your pet in just a few clicks!
Heatstroke Average Cost
From 250 quotes ranging from $500 - $5,000
Average Cost
$2,500
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Heatstroke Questions and Advice from Veterinary Professionals
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Medium long hai
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Buddy
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3 Years
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3 found this helpful

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3 found this helpful

My pet has the following symptoms:
Panting
My cat suffered heat stroke, he was in a hot place and he drooled all over his fur on his chest. He recovered well, as far as I can tell. This was 8 weeks ago. I've noticed he pants alot now when it's hot or if he is in the sun. I'm worried he might have internal damage. I havnt seen any blood in his urine and he eats regularly and goes to the bathroom as normal. Could he have any internal long term complications from this in the future now ?
Sept. 18, 2018
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Norwegian forest cat
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Sunny
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13 Years
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3 found this helpful

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3 found this helpful

My pet has the following symptoms:
Drooling
Excessive Saliva
Excessive Cleaning
Sweating Paws
This has as been an usually hot summer and usual my cat hasn’t had any issues (or at least not to my knowledge) with the heat. My cat is 13yrs old and is a long hair breed, a Norwegian Forest Cat. From what I know about his breed he is meant to be in freezing environments, so I wonder if this particular summer’s excess heat has caused him to have heat stroke or caused him to over heat? I say this because all of a sudden this summer...a week or so ago (during the hottest part of summer) my cat started to produce a lot of saliva than more than usual. He has also been drooling, panting, cleaning a lot more than usual, and he’s restless. He is an indoor and outdoor cat but he prefers to be outside during the day. However, he can come inside whenever he wants. When he’s outside he’s in the shade or can be if he wants. He also has constant excess to water. But I wonder if due to the thickness of his fur if he’s is getting too hot and that’s what is causing his symptoms. Btw He’s also may be drinking pool water. I don’t know what may be causing these symptoms. He has not vomited or had diarrea (as far as I know). He’s eating and drink and going to the bathroom. He’s behavior is normal for the most part and although he does seems a little off balance. Can you help me figure out what’s wrong? And Should I go to vet? I’m ask because he hate hates the vet more than most cats and I would like to avoid a visit if not necessary. What do you think is wrong with my little man?
Aug. 31, 2018
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Persian
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Mo
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2 Months
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1 found this helpful

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1 found this helpful

My pet has the following symptoms:
Vomiting
My kitten have been vomiting since last three days. But only yesterday and today he vomit one time, and after vomiting he's not that active like playing aroung with the toys. He'll just go back to sleep. And his vomit is abit watery. Pls advice. Should i consult a vet or is there any other suggestion for me to prevent him from vomiting. It started when i brought him to the sea and just realise that he is type of cat that can get heat sensitivity easily. We are only been at the sea for 1 hour and decided to bring him back to the car and on the air-conditioned. And he also eat abit of the canned food.
Aug. 7, 2018
Answered by Dr. Michele K. DVM
1 Recommendations
If Mo has continued to vomit and isn't eating over the last 3 days, it would be a good idea to have him seen by a veterinarian. If he is eating and drinking, he may continue to improve. If you aren't sure, a visit to a veterinarian would be best.
Aug. 7, 2018
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Persian
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Mo
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2 Months
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0 found this helpful

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0 found this helpful

My pet has the following symptoms:
Vomiting
Hi, my kitten just turned 2 months and last two days we thought of taking our kitten to the sea. But we didnt know cats cant be under the hot sun. Then he started to pant and his tongue turns red. When we reached home, we just let him cool down first we didnt wet him with any water. Then he started to vomit 4 times yesterday and today was two time. Pls advice.
Aug. 5, 2018

Answered by Dr. Michele K. DVM
0 Recommendations
If Mo continues to vomit, or isn't eating, or seems lethargic, or has any signs of bruising, he should be seen by a veterinarian to be evaluated for post heatstroke concerns. He may continue to improve over the next day or two, and if he is eating, not vomiting, and seems normal, he should be okay.
Aug. 5, 2018
So i do not have to bring him to the vet first isit?
Aug. 6, 2018
Mo's Owner

And do you have other suggestions than to bring Mo to the vet?
Aug. 6, 2018
Mo's Owner
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Maine Coon
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M
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11 Months
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1 found this helpful

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1 found this helpful

My pet has the following symptoms:
Vomiting
Mild Lethargy
We have a cat who seems to have experienced some heat stroke symptoms recently, especially today. It's been quite hot recently and today our cat has been throwing up. He is a Maine Coon mix so he has long and dense fur which I'm sure exacerbates the problem. We've cranked the ACs higher and blocked off the main room to keep it cooler than the rest of the house. And we have put some water on his paws/body earlier to help him cool off. The main symptoms he's shown are: - Vomiting (we've found 10 small separate instances throughout the day) - Seems to be walking a bit gingerly, not stumbling or falling over but less spry than usual. - More lethargic and stressed looking that usual. - Possibly a higher heart rate/breathing rate than normal. We plan on taking him to the vet tomorrow (It's night now, and started late this afternoon) but just wanted to see get some advice here if possible. A couple weeks ago we had our first heat wave, and he was getting pretty hot. I was playing with him (so he was active and running around) and he started panting. I took him down to a cool spot, wet his paws, etc. and he seemed fine. We have since put in ACs and haven't noticed anything until today (today is about the 4th 90+ degree day in row - hotter than normal where I live). We have considered getting his fur trimmed by a groomer, but have read mixed opinions on the effectiveness of this. Some say it helps, but others say they need they're long hair and can make it worse? And for what it's worth, he gets car sick almost every time he goes for a ride. When this happens he will usually defecate and/or vomit, so he gets a bath when we get home. All the stress from the car ride and bath makes him act more lethargic and mellow for the rest of the day. He is acting similar to this now. I don't think the heat has been a factor for the past several hours but he still looks stressed. He also had a bad reaction to flea meds a couple months ago and was throwing up all day. Just adding this to share that he has a pretty weak stomach and is prone to stress. Thanks!
July 14, 2018
Answered by Dr. Michele K. DVM
1 Recommendations
I'm sorry that M is having this problem! I'm not sure that he would have heat stroke if he is in your house, and vomiting and lethargy can be signs of a number of problems with cats. Young cats are prone to parasites and foreign bodies, in particular. Having him seen for this problems seems to be a good idea, I'm glad that you will be taking him in the morning. As far as grooming, if he is an indoor cat, he should be able to acclimatize to any mild changes in temperature and trimming his hair may be more of an aesthetic thing to prevent matting.
July 14, 2018
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Heatstroke Average Cost
From 250 quotes ranging from $500 - $5,000
Average Cost
$2,500
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