Although humans worldwide encounter many species of spider, only a few spiders present a threat. Two poisonous spiders are present in North America. The black widow spider and the brown recluse spider are both dangerous to humans and are found in states in the southern half of the United States. If bitten by a spider you should identify the species of spider if possible and seek medical care.
The brown recluse is an unassuming little spider with a potent venom that can cause serious illness to humans. Children, who often visit areas inhabited by the brown recluse, are at particular risk of a bite. The bite causes th...
If you suspect that your child has been bitten by a black widow spider, don't panic. No one has died from a black widow spider bite in the last 10 years in the United States, says the California Poison Action Line. However, you...
The brown recluse spider and the black widow spider are dangerous to humans because their fangs can penetrate skin and inject poisonous venom. Brown recluse spiders have an upside-down violin-shaped marking down their backs and...
Characterized by a two-part body, the head and thorax section with eight legs and the abdomen or rear section, arachnids of many varieties live all over the world. The ones that exist in the United States are generally harmless...
The brown recluse is non-aggressive, but it will bite when accidentally disturbed, explains the Texas Department of State Health Services. Brown recluse bites are necrotizing, which means that they cause skin tissue to die. No ...
According to the Mayo Clinic, the majority of spider bites are not dangerous to humans. Brown recluse spiders, one of the few dangerous, common spiders in the United States, reside in the Southern states. While brown recluse sp...
This spider's name stems from the presence of a violin-shaped mark along its upper back. Though the fiddleback spider is not normally aggressive, it will bite a human in self-defense if it feels threatened or becomes trapped, w...
The danger of spiders it that they can bite, causing a range of symptoms. Sometimes symptoms are mild, such as skin irritation; however, symptoms of bites from some varieties of spider can be severe, possibly turning fatal and ...
The brown widow spider, or Latrodectus geometricus, is one of five widow spider species found in the United States. More than 30,000 species of spiders exist, but only a few can inflict a serious bite and produce venom harmful ...
The primary distinguishing feature of the black widow spider is a tiny, reddish, hourglass-shaped mark on its stomach. The black widow spider may bite if it is inadvertently touched, trapped or frightened by a human. Though a b...
The most common place to find these spiders is the south central areas of the U.S., according to Medline Plus, a publication of the National Institutes of Health. A brown recluse spider bite isn't always deadly and, as a matter...
It is recognized by its shiny black body and signature red hourglass figure on the abdomen. Although it is rare for death to occur from a black widow bite, there are some people who are at higher risk for complications leading ...
According to MedlinePlus, the brown recluse spider is found most commonly in the southcentral states in the United States. Even though this is the most common area where the spider can be found, these poisonous spiders have als...
The jumping spider is the most likely spider to bite a human in the United States, according to the California Poison Control System. Jumping spider is a name given to various species of spiders that jump or leap towards their ...
The hobo spider is the most dangerous in this group, but is found mostly in the Pacific Northwest. Children, Youth and Women's Health Service of Australia points out that occasionally the house spider will bite and produce a fe...
The brown recluse spider and the black widow spider are among the very few species that can bite humans and inject dangerous venom.
This black or dark brown spider may grow to 1 1/2 inches in length; some species have a characteristic red hourglass underneath the abdomen. They generally live outdoors but may come inside; these spiders prefer dark, quiet are...
Brown recluse spider bites are poisonous but rarely fatal. Prompt medical treatment is necessary to avoid serious complications. The brown recluse spider can be found outdoors or indoors, usually in hidden areas. It generally o...
The symptoms of spider bites can be diverse and vary in severity depending on the type of spider, location of bite and an individual's immune response to the venom. Spiders bites, whether they come from venomous or non-venomou...
The black widow spider has found her way into American culture as a symbol of danger. However, this shy, unassuming shiny black spider with the red hourglass on her belly only bites when disturbed. Her bite can be lethal, thoug...
If you think you may have been bitten by a black widow spider, seek medical attention immediately. If possible, trap the spider and take it with you to your doctor. There are several symptoms associated with black widow spider ...
Spider bites can cause pain and scary-looking sores, but in many cases, are not dangerous to the health. Bites from black widow and brown recluse spiders may cause serious harm in some people and may require professional medica...
Spider bites generally cause significant redness and swelling and can easily become infected. Wash the bite area with warm, soapy water as soon as possible. Ward off infection by applying diluted hydrogen peroxide after you th...