What to Do if a Black Widow Bites Your Cat?


Treatment for Black Widow Spider Bite Poisoning in Cats

Your cat will be hospitalized and given helpful care. Oxygen may be given to help in breathing, and intravenous fluids provided to lower blood pressure. Anti-venom drugs are offered and your veterinarian will administer them while keeping track of carefully for responses. The muscle spasms and severe pain will be controlled by intravenous administration of medications that will unwind the muscles and bring remedy for pain, enabling your feline to rest and recover from the spider poison. Cats tend to be particularly sensitive to black widow bites, and the prognosis is typically bad for felines, however may be avoided if care is given right away after a bite.

Latrodectus tredecimguttatus  Venom Toxicosis in Cats

The black widow spider belongs to the genus Latrodectus– the widow spiders. In the U.S., the 3 substantial species to expect are the Western widow, the Northern widow, and the Southern widow spiders, all of which are extremely venomous to domestic family pets and human beings. The Western widow is found in western areas of the United Sates; the Northern widow is discovered in the northern most U.S. and southeast Canada; and the Southern widow is discovered in the southeast U.S., from Florida to NewYork and into a number of the southwest states. They are discovered in every state except Alaska and are often found residing around buildings and human habitations.

The females measure about 2– 2.5 cm in length and are the bigger of the genders. She is shiny black with a red or red-orange hourglass shaped mark on the underside of her abdominal area, and in some women, there is also a patch of red on the top of the abdominal area, above the spinnerets. The immature female is more of a brown color with red to orange or yellow stripes across the leading abdomen that change into the hourglass shape as she ages and darkens to black. The male is substantially smaller, about half the size, with light brown coloring, and lacking the red hourglass marking the female is acknowledged for. The male is not considered as a threat, as it is usually the woman that bites.

Black Widow Spider Bites in Cats

Black Widow Spider Bites in Cats
The black widow spider is an arachnid rock star when it pertains to venom. While there are other poisonous spiders, the black widow’s bite is lethal due to the fact that the symptoms are perilous, the bite difficult to see and the diagnosis difficult to make. Treatment is a challenge too.

Bites might be dry, with no venom injected. The venom is a powerful neurotoxin, opening channels at the presynaptic nerve terminal and triggering huge release of acetylcholine and norepinephrine, both of which can cause continual muscular spasms and paralysis. A feline might be bitten while inside your home or outdoors, as black widows are understood to regular both. Nobody cat is more at risk than another, but young and old felines are at an increased risk for complications due to their weaker immune systems.

Symptoms of Black Widow Bites

  • Increased blood pressure and heart rate
  • Abdominal rigidity
  • Death, if anti-venom treatment is not offered rapidly.
  • Vomiting – not uncommon for a feline to vomit up the actual spider.
  • Trouble breathing, respiratory collapse due to stomach muscle paralysis
  • Diarrhea.
  • Early, marked paralysis
  • Muscle tremblings and cramping
  • Incoordination and inability to stand (ataxia).
  • Extreme salivation and restlessness.
  • Severe muscle pain in the back, chest and abdomen, manifested by growling and loud vocalizations


  • Really young or old animals are at increased risk of severe reactions due to the fact that of weaker immune systems.
  • Cats with systemic hypertension are at increased risk for a fatal outcome.


This disease is difficult to identify due to the fact that the symptoms may be triggered by other diseases. total blood profile will be performed, including a chemical blood profile, a complete blood count, and a urinalysis, along with a comprehensive physical examination of your feline. Your doctor might likewise want to test a sample of your cat’s stool. If possible, take a sample of your cat’s stool and/or vomit with you to the veterinary center, this can assist your doctor to make the diagnosis that much faster. Your vet will be searching for injuries to the skin, at which point a bite mark might be discovered. Muscle rigidness and abdominal rigidness are traditional signs of black widow envenomation.

Living and Management

Your veterinarian will want to keep an eye on the injury site weekly until it has recovered. The prognosis might doubt for days. Without anti-venom drugs, black widow venom is normally deadly in felines. Weakness, tiredness, and insomnia may continue for months.


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