Huntsman spiders, often recognized by their considerable size, are common inhabitants in many parts of the world, including Australia. Despite their intimidating appearance, these spiders are generally not considered dangerous to humans. While they possess venom, it is primarily used to subdue their prey. Encounters with huntsman spiders can be startling, yet serious complications from their bites are rare.
Huntsman Spider Characteristics
Huntsman spiders are known for their large size, with leg spans that can reach up to 15 centimeters. Their bodies are flattened, which allows them to fit into narrow crevices, and they are brown or grey, blending into their surroundings. These spiders are also remarkably fast, hunting their prey by chasing it down rather than building webs. Despite their speed and size, huntsman spiders are generally not aggressive towards humans, preferring to flee when disturbed. People often encounter them indoors as they seek shelter or look for insect prey.
Effects of a Bite
While huntsman spiders can bite, such incidents are uncommon and usually occur only when the spider feels threatened or is accidentally trapped against the skin. The venom they possess is mild and designed to incapacitate smaller creatures like insects, not to cause significant harm to humans. If a bite does occur, the symptoms are localized and relatively minor. Individuals might experience mild pain, swelling, redness, and itching at the bite site. These effects are comparable to a bee sting in terms of severity for most people.
Serious reactions to a huntsman spider bite are rare. Most symptoms arise from the physical bite itself rather than the venom’s effects. While the venom is generally not medically significant for healthy individuals, those with pre-existing allergies may exhibit a more pronounced response. However, severe allergic reactions, such as anaphylaxis, are uncommon.
Responding to a Bite
If you are bitten by a huntsman spider, immediate steps involve basic first aid. Clean the bite area with soap and water to prevent infection. Applying a cold pack to the affected area can help reduce swelling and alleviate pain or discomfort. Over-the-counter pain relievers, such as paracetamol, may be used if needed.
Monitor the bite site for changes. While serious complications are rare, you should seek medical attention if symptoms worsen, signs of infection develop, or if you suspect an allergic reaction. Symptoms indicating a more serious issue include difficulty breathing, widespread rash, or significant swelling beyond the bite area.