Do Huntsman Spiders Bite Humans? And What to Do If They Do

Huntsman spiders are large arachnids often encountered in homes, known for their appearance and rapid movements. Many people wonder about their potential to bite humans. Understanding their behavior and how to react helps alleviate apprehension.

Understanding Huntsman Bites

Huntsman spiders can bite, but such occurrences are uncommon and primarily defensive. They are not naturally aggressive towards humans and typically prefer to retreat when disturbed. Bites usually happen when a huntsman feels threatened, trapped, or is accidentally pressed against skin. This might occur if a spider is inadvertently caught in clothing or bedding.

Female huntsman spiders may bite if safeguarding their egg sacs. A cornered huntsman may display a warning by rearing up and waving its front legs before biting.

Responding to a Huntsman Bite

If a huntsman spider bite occurs, symptoms are generally mild and localized. Individuals typically experience minor pain at the bite site, accompanied by redness, swelling, and itchiness. In some instances, a bite might also lead to temporary nausea or a headache, though these effects are not common. The venom of huntsman spiders is not considered medically dangerous to humans, and severe reactions are rare.

For first aid, clean the bite area thoroughly with soap and water. Apply a cold pack or ice wrapped in cloth to reduce swelling and pain. Over-the-counter pain relievers like paracetamol or ibuprofen may be used for discomfort. Allergic reactions, though uncommon, can present as widespread itching, hives, difficulty breathing, or swelling of the throat or tongue; immediate medical attention is advisable in such rare cases.

Coexisting with Huntsman Spiders

To minimize accidental encounters with huntsman spiders indoors, several preventive measures can be taken. Sealing cracks and gaps around windows, doors, and walls can limit their entry points. Installing fine mesh screens on windows and doors helps keep spiders outside. Reducing clutter indoors, particularly in less-frequented areas like basements or storage spaces, removes potential hiding spots for these spiders.

If a huntsman spider is found indoors, safe removal methods are recommended. Place a glass or plastic container over the spider and slide paper or cardboard underneath to trap it. Transport the contained spider outside and release it in a shaded area away from the home. Trimming plants and bushes away from the house can also reduce access pathways.