While most spiders are harmless to humans, certain species can deliver venomous bites that may result in itching, burning pain, skin irritation, or even death. Spiders can be categorized into three main families: webbing spiders, free-range spiders, and ground-dwelling spiders. Among these, ground-dwelling spiders, such as the Sydney funnel web, trap door spiders, and wolf spiders, are the most concerning due to the potency of their venom. However, most webbing and free-range spiders carry venom that is less severe and typically does not require hospital treatment unless the individual bitten experiences a severe reaction.
Spiders may enter homes through loose screens, cracks under doors and windows, or other openings. They often seek shelter indoors while searching for food, mates, warmth, or moisture. The presence of insects and other prey within homes can attract spiders, as they feed on these creatures. Spiders tend to inhabit dark, moist areas such as subfloors, wall cavities, and roof voids, where they hunt for prey like cockroaches and other insects.