Wolf spiders are members of the Lycosidae family. While they may bite if they feel threatened, wolf spider bites are not life-threatening. Instead, they typically cause mild and temporary symptoms.

Symptoms

Wolf spider bites are not poisonous and usually do not cause severe symptoms. Common signs include:

  • A red bump

  • Swelling

  • Itching

  • Mild pain or discomfort

Most symptoms resolve on their own.

However, in rare cases, an allergic reaction may occur. Seek emergency medical care if you experience:

  • Hives

  • Facial swelling

  • Trouble breathing

  • Dizziness or fainting

  • Weakness

What Causes a Wolf Spider Bite?

Wolf spiders prefer to stay hidden and generally avoid humans. They may bite when:

  • They feel trapped or threatened

  • You accidentally touch or corner them

Outdoors, they often hide in leaf piles, woodpiles, or under logs. Indoors, they may be found in garages, basements, or closets.

The symptoms are caused by the bite itself, not venom.

Diagnosis

Because many insect bites look similar, it can be difficult to identify a wolf spider bite unless you see the spider.

A healthcare provider will check for allergic reactions, signs of infection, or other causes.

Treatments for Wolf Spider Bites

Most wolf spider bites heal without medical care. Focus on wound care and symptom relief:

  • Clean the bite with soap and warm water

  • Cover with a clean bandage to prevent infection

  • Apply an ice pack to reduce swelling and redness

  • Take antihistamines (like diphenhydramine) for itching

  • Use OTC pain relievers (acetaminophen or ibuprofen) if needed

Prevention

To reduce your risk of wolf spider bites:

  • Avoid clutter in your home (piles of clothes, cardboard boxes)

  • Relocate wolf spiders outdoors if you find them inside

  • Seal gaps and cracks where spiders may enter

  • Keep a safe distance when you see them outdoors

Remember, wolf spiders also help control insect populations and are beneficial to the environment.

Complications

While usually harmless, wolf spider bites can sometimes lead to infection. Watch for:

  • Worsening redness or swelling

  • Pus or drainage

  • Red streaks from the bite

  • Fever or nausea

If these symptoms occur, seek medical care. A doctor may prescribe antibiotics.

A Quick Review

Wolf spiders may look intimidating, but their bites are typically mild and not poisonous. Symptoms usually include redness, swelling, and itching. Most heal on their own, but seek medical help if you notice signs of allergy or infection.