![]() In people with dark skin tones, they may appear as a lumpy or bumpy cluster of lesions that is darker than the surrounding skin. In people with light skin, the blisters will turn reddish purple. General symptoms of a spider bite include: According to a 2011 study, they can also resemble a number of bacterial and other infections.įor this reason, a spider bite can be hard to diagnose, unless the person takes the spider that bit them to a doctor. They can look similar to many other bug bites. Spider bites do not produce many distinctive features by which people can identify them. Share on Pinterest Brown recluse spider bite Photography courtesy of Tannbreww4828/Wikimedia and nearby are dangerous, what to do if a venomous spider bites, and how to prevent bites. This article will explain how to identify a spider bite, which species in the U.S. as venomous - black widow spiders and brown recluse spiders. The Centers for Disease Control and Prevention (CDC) list two types of spider in the U.S. Yet, some species produce venom that is powerful enough to harm a person. If a spider does bite, it will usually cause no more harm to a person than a moderate insect bite. Also, the fangs of many species cannot pierce human skin. However, the venom in nearly all spiders is too weak to have a significant effect on a human. In this sense, most spiders are venomous. ![]() Most spiders use venom to kill their prey. ![]() This could happen if a person puts their hand in a box where a spider is living or if they put on a jacket that has a spider hiding inside. Spiders will only bite in self-defense, for example, when they feel trapped or under threat. However, very few spider species in the United States can harm humans. Spider bites are uncommon, but they can be painful and sometimes dangerous. ![]()
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