Spider bites are usually harmless. In fact, many bites attributed to spiders turn out to have been infected by other bugs. Skin infections have also been mistaken as spider bites. Only a few types of spiders have fangs strong enough to penetrate the skin and venom lethal enough to cause severe disorders. These include the black widow spider and brown recluse spider. Black widow spider bite symptoms include abdominal pain and cramping, while brown recluse spider bites can cause the skin
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