Can A Black Widow Spider Bite Kill A Dog?

by | Last updated on January 24, 2024

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Generally,

small dogs and cats can sometimes be potentially killed by the bite of a black widow

, but large dogs fare much better. At risk are for the most part, smaller animals that are very young or very old, explains veterinarian Dr. Bruce. In cats, single bites are potentially fatal.

Do black widow bites affect dogs?

Initially, a black widow bite is

moderately painful

and accompanied by mild redness or swelling. … These signs include muscle pain and cramping, vomiting, diarrhea, tremors, and agitation. Affected dogs and cats may also develop muscle rigidity and may seem painful in their abdomen (belly).

What happens if a dog gets bit by a black widow?

These carry a potent venom which is a neurotoxin (a-latrotoxin). Dogs and cats bitten by black widow spiders may show clinical signs of

severe muscle pain, cramping, walking drunk, tremors, paralysis, blood pressure changes, drooling, vomiting, diarrhea, and death

.

What happens if dog eats black widow?

Seek veterinary treatment immediately if you suspect your dog has eaten one of the three highly venomous

spiders

in the U.S: black widow, brown recluse, or hobo spiders. Not only will ingestion of these spiders cause toxicosis, but also the bites on the way down pose a serious threat to your dog's health.

What does a spider bite on a dog look like?

Typically, what you'll see is

a pink or red bump

unless your dog has an allergic reaction, which would result in hives and a swollen face. However, a bite by the venomous brown recluse causes a lesion that changes color over time.

How do you treat a spider bite on a dog at home?

  1. Check for a Stinger in the Wound. …
  2. Use a Cold Compress to Help with Swelling. …
  3. Apply Paste of Baking Soda and Water to the Wound. …
  4. Give Your Dog an Oatmeal Bath. …
  5. Apply Aloe Vera Gel to the Bite. …
  6. If Safe, Give Your Dog Benadryl.

How do you treat a black widow bite on a dog?

Treatment includes the use of

an antivenom, IV fluids, anti-seizure medications, pain medications, and symptomatic supportive care

. If you suspect your dog or cat were bitten by a black widow spider, call your veterinarian or Pet Poison Helpline immediately for life-saving care.

Do snake bites swell on dogs?

In dogs bitten by a non-venomous snake, swelling and bruising around the bite are the most common clinical signs. … As a general rule,

there is extensive swelling that often spreads quickly

. Bleeding or a bloody discharge often occurs at the site of the bite.

How long does black widow spider bite symptoms last?

Shaking (tremors), sweating, rapid breathing, weakness, headaches, nausea, and vomiting can also occur. In severe cases, the person may also develop a fast heart rate and high blood pressure. Symptoms most often appear 30 minutes to 2 hours after the bite. They may last for

24 to 72 hours

.

Can eating a spider make my dog sick?

Vets Now says that

eating and ingesting spiders is unlikely to cause problems

, unless the cat or dog is bitten in the mouth, as any venom will be deactivated during the digestion process. If this happens, carefully monitor your pet for the next few days to see if there is a reaction such as vomiting or lethargy.

What are the symptoms of black widow bite?

  • Muscles that begin to hurt and become stiff, usually within 8 hours.
  • Nausea or vomiting.
  • Difficulty breathing.
  • Severe abdominal pain or cramping.
  • Excessive sweating.
  • Rash and itching.
  • Swollen eyelids.
  • Weakness or tremors. You may not be able to move your legs.

How serious is a black widow spider bite?

Black widow spider bites

can be dangerous but fatal bites are rare

. Black widow spider bites often are painful right away. After a bad bite, severe pain and muscle cramps can start in a couple of hours. Pain and muscle cramps can be treated.

How long does it take for a spider bite to affect a dog?

A small amount of redness may be noticeable, along with a blister developing

within 2-8 hours

. It may also develop into a blister with a bulls-eye lesion, a red circle surrounding the pale area where the bite occurred.

Can you put Neosporin on a dog?

Neosporin can

be used topically to treat minor cuts and scrapes in dogs

, just like in humans. However, it is best to check with your veterinarian before using any over-the-counter medication intended for humans on your dog. … Neosporin should never be used in the ears, eyes, or mouth.

Are dogs affected by spider bites?


The majority of spider bites are harmless to dogs

. Only a few spiders have venom strong enough to cause significant signs in such a small dose. The brown recluse spider is one of these, found most commonly in the southern and midwestern parts of the United States.

What ointment is good for spider bites?

Before covering the bite, consider using an over-the-counter (OTC) medicated cream, such as:

antihistamine or hydrocortisone cream

to help with itching. triple antibiotic ointment to discourage infection or if you're blistering. analgesic cream to help reduce pain.

Diane Mitchell
Author
Diane Mitchell
Diane Mitchell is an animal lover and trainer with over 15 years of experience working with a variety of animals, including dogs, cats, birds, and horses. She has worked with leading animal welfare organizations. Diane is passionate about promoting responsible pet ownership and educating pet owners on the best practices for training and caring for their furry friends.