Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

4 Home Remedies for a Spider Bite on Your Cat – Our Expert Guide

Cat Watches Spider

Some cats love to investigate anything and everything, which sometimes includes spiders! Spider bites can be serious, so while there are home remedies that you can use to soothe adverse reactions, we recommend taking your cat to the vet for a consultation. Spider bites can be deadly for cats, so it’s better to be over-cautious.

The good news is that most spider species in the U.S.A. can’t harm your cat, as their fangs are too short to do any damage. Your cat may get a bite, but it won’t cause any long-term harm. However, two types of spiders in the U.S.A. are venomous, and a bite from one of these can cause serious complications for your cat. These species are:

  • The Black Widow
  • The Brown Recluse (Fiddleback)

divider cat paw scratch oct 2024

What Should You Do if You Think a Spider Has Bitten Your Cat?

If you think your cat has been bitten by a spider, look for any of the following signs:
  • Swelling
  • Redness
  • Sores or bite marks
  • Intense scratching at the site of a bite
  • Fever
  • Drooling
  • Excitability
  • Chills
  • Vomiting
  • Muscle weakness
  • Joint pain
  • Labored breathing
  • Collapse
  • Tremors
  • Skin swelling
  • Diarrhea
  • Paralysis

Bear in mind that the signs of a spider bite often present a few hours after the bite itself. Call your veterinarian immediately, and tell them you think a spider has bitten your cat. If you saw the bite happen and the spider is still visible, collect the spider in a jar or take a photo. If the spider can be positively identified, it will be quicker and easier for your vet to decide which treatment is needed.

While waiting to take your cat to the vet, you can use the following home remedies.

The 4 Remedies for Spider Bites

1. Restrict Your Cat’s Movement 

Tabby cat eating from inside inside a cat carrier box
Image Credit: Oleg Batrak, Shutterstock

Allowing your cat to walk or run will increase their blood circulation, making the venom travel faster around their body. Place your cat in their carrier, or keep them in a small space where it’s harder for them to move around.


2. Keep the Bite Below Your Cat’s Heart Level 

Sick cat in animal hospital
Image Credit: Kachalkina Veronika, Shutterstock

This can also help slow the spread of the venom.


3. Wash the Site of the Spider Bite 

cat in bathtub
Image Credit: 135pixels, Shutterstock

Use cold water and soap or an antimicrobial spray if you have it. This can help reduce the risk of a secondary infection developing.


4. Apply a Cold Pack 

Woman putting ice cubes into pack
Image Credit by: New Africa, Shutterstock

Placing a cold pack on the bite, if your cat allows it, can numb the pain and help reduce swelling. The temperature reduction will also slow the circulation in that area, reducing the spread of the venom.


Treatment for Spider Bites 

The type of treatment your vet uses will depend on the species of spider that has bitten your cat. For any venomous spider, immediate veterinary care is critically important. Bites from a black widow spider can cause your cat’s diaphragm to become paralyzed. Your vet may administer an antivenin, intravenous fluids, pain medicine, or muscle relaxants.

Brown recluse spider bites can cause the tissue surrounding the bite to die off. This can leave a red wound with a pale ring surrounding it and itchiness and bruising. It can also cause nausea and a fever. Left without treatment, a deep tissue injury is likely. Your vet may use an antivenin and prescribe steroids to reduce any damage to tissues or remove dead tissue. Antibiotics may be used to prevent secondary infections. It can take up to a month for your cat to recover.

divider cat paw scratch oct 2024

How to Reduce the Chance of Spider Bites

If you’re concerned about your cat getting bitten by a spider, remember that most spiders can not harm your cat. Make sure to vacuum the corners of each room, both up high and down low, where spiders like to hang out. If you see cobwebs, try to remove them. Keep your cat away from areas of the house where spiders may be more likely, such as the basement or attic. If you have a woodpile, move it away from the house, and don’t allow your cat to follow when you collect wood, as spiders love woodpiles!

Some spiders like to hide in long grasses, so keep the lawn around your house as short as possible. If you spot multiple venomous spiders, there may be a nest nearby. We recommend calling in a pest control company that can remove the infestation for you.


Featured Image Credit By: Irina Kozorog, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Catster Photo Contest: Cats of the Week Winners (May 29, 2025)

This Week’s Winner Silliest Most Dignified Best Action Shot Sleepiest Cutest Enter Your Cat Submit your kitty for a chance to be featured!...

10 Best Cat Trees in 2025 – Reviews & Top Picks

Cat trees are an amazing invention that can instantly transform a space. A good cat tree can blend in seamlessly with your decor,...

10 Vet-Reviewed Types of Cat Litter Boxes & How to Pick the Right Litter Box for Your Cat

Plenty of litter boxes are on the market, each with pros and cons. But which is right for your cat? Choosing the ideal...

Can Cats Eat Turmeric? Vet-Approved Benefits & Advice

Cats may be carnivores, but they sometimes like to munch on plant foods like carrots and bananas. They might snatch our almost-finished muffin...

More related

Do Ragdoll Cats Scratch Furniture? Common Causes & Prevention Tips

Furniture scratching is a huge thorn in the side of cat parents everywhere. If you’re thinking of getting a Ragdoll and are wondering...

Ask Dr. Paola – Refusal to Eat, Over-Grooming, & Dog Medicine (February 24, 2025)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

32 Cat Dad Jokes for the Funny Feline Father in Your Life

Dad jokes may not earn much appreciation from the audience, but few things give dads more pleasure than busting out a cleverly awful...

Chlamydia in Cats: Our Vet Explains the Signs, Prevention & Treatment

You’ve probably heard about chlamydia, but maybe not in reference to your feline friends. In kitties, chlamydia infections often take on the form...

Keep reading

9 Best Ear Mite Treatment for Cats in 2025 – Reviews & Top Picks

If you’re watching your cat scratching their ears obsessively and continuously shaking their head, they might have ear mites. While they aren’t terribly serious, complications can arise if left untreated. The first thing you need to do is take your...

grayish cat's owner cleaning its ears_Te9I_shutterstock

Why Are Cats So Curious? 7 Fascinating Vet-Reviewed Insights

If you have a cat, you’ve probably noticed that they are always interested in your actions. If you open the doors, bring in the groceries, or go upstairs, your cat probably follows you to see what you are doing and...

two cats playing with toy at home

Can Cats Eat Toothpaste? Vet-Verified Risks & Precautions

Toothpaste is a standard personal care item found in most homes and some handbags and briefcases. If your beloved feline has found their way into your dental care products, you might be wondering if toothpaste can be harmful to cats....

Can Cats Eat Toothpaste

How Do Cats Play With Dogs? Body Language & Behaviors Explained

Cats and dogs are natural enemies, right? Wrong. Many cats and dogs actually enjoy each other’s company; they can even become friends! It’s not uncommon to see best buds of different species cuddling up together or playing with one another....

dog and cat on floor

5 Vet-Reviewed Tips on How to Use Cat Eye Drops (Without Getting Scratched)

Many cat owners are unsure how to handle the situation when their cat is diagnosed with an eye condition, and they’re prescribed eye drops. After all, it’s not like you can ask your feline pal to lean back their head...

treating-cats-eye

How to Calm a Cat During Thunderstorms: 16 Vet-Reviewed Methods

Some cats could care less about thunderstorms, while others are scared and anxious. If your cat doesn’t feel comfortable around loud and unpredictable noises, they may hide or even try to escape your home as the storm begins, which could...

cat scared of thunder

10 Cornish Rex Health Issues You Should Know (Vet Answer)

The first Cornish Rex kitten was born in Cornwall, U.K., in the 1950s due to a genetic mutation.1 This breed is known for its very fine, short coat. While Cornish Rex cats are generally healthy, pet parents need to be...

Cornish rex cat sitting on the grass

Normal Cat Blood Pressure: Vet-Approved Information & Facts

As pet parents, we want only the best for our feline friends. However, many cat owners don’t realize that, much like humans, cats can also suffer from problems with their blood pressure. The normal blood pressure range for your feline...

checking blood pressure of cat