The most common question people ask about spiders is “are they poisonous?” The fact is that most spiders are “poisonous” because they contain venom. The main part of a spider’s mouth is its fangs, which it uses to inject venom into its prey (e.g., other spiders, insects, and arthropods) to paralyze and kill it. The venom contains enzymes that dissolve the prey’s insides so that the spider can suck up the nutrients. Of all spiders, only two are something to ever worry about: the black widow spider and the brown recluse spider.
Black Widow Spider
People bitten by a black widow usually don’t notice. It causes nothing more than a pin prick if felt. Within an hour, one may notice faint red marks and slight swelling. Over time, pain may intensify and the bite may cause stiffness in limbs. Severe cramps and abdominal pain, along with profuse sweating, are signals to seek immediate medical care. Symptoms typically go away on their own, but an anti-venom is available for those who suffer from an allergic reaction to the bite.
Common to central and southern states in the U.S., the brown recluse can be found in sheds, logs, rock piles, and other dry, secluded areas. This spider is a top-feared one due to its reputation for causing necrosis (decaying tissue) at the site of the bite. The brown recluse spider is one that is often confused with other brown or gray house spiders. A brown recluse is brown in color and has a characteristic marking on its back that is shaped like a violin. The mark can be difficult to see, so similar-looking house spider species common to Seattle WA often create panic in people.
When bitten by a brown recluse, one may experience a stinging sensation. Within eight hours, redness and intense pain typically occur. Over time, the symptoms can worsen and result in a dark blue or purple colored area around the bite, a deep sore or ulcer, and in severe cases, tissue that begins dying around the bite. There’s no anti-venom available for brown recluse bites.
Few spiders are large enough or venomous enough to cause harm to humans. In the rare case that someone is bitten by a black widow or brown recluse, it’s important to recognize common signs and symptoms. When reactions are severe, prompt medical attention must be sought.
If you’ve found a black widow or brown recluse spider in your home, reach out to your local spider exterminators. Our team at United Pest Solutions can quickly assess your situation to find the source of the problem and safely eliminate any spider population.