Brown Recluse Spider Bite
Information on the symptoms and treatment for brown recluse bites.

  • September 14, 2006 > Spider Bite: Brown Recluse Spider Bite 1 | Brown Recluse Spider Bite Brown Recluse Spider Bite Overview Most spiders are absolutely harmless to humans

  • Bites from these cousins produce mild to moderate local skin disease

  • Habits: These spiders are not aggressive and bite only when threatened, usually when pressed up against the victim’s skin

  • Most bites occur in the summer months

    Black Widow Spider Bite
    Information on the symptoms and treatment of black widow spider bites.

  • September 14, 2006 > Black Widow Spider Bite 1 | Black Widow Spider Bite Black Widow Spider Bite Overview Most people avoid spiders

  • The bite of a black widow spider sounds serious—and it can be—but the creepy part is that you may not realize you have been bitten until you become ill

  • The fact is that spiders rarely bite humans, and in fact, most spider bites do not even break the skin with their bites

  • The bites of very large spiders such as tarantulas can be painful

  • Only the female black widow bites humans, and she bites only when disturbed

    Brown Recluse Spider Bite Site by
    Searchable database of reported brown recluse spider bites. Contains photographs
    in various stages.

  • Brown Recluse Spider Bite Site 'If you or someone close to you has been bitten recently and are seeking information then you have come to the right place

  • The Bite Site has over (as of 7/2006), including hundreds with attached , from people like you

  • You can add your story to the Bite Site by filling out a

  • Take .' Mark BRS Database - Read bite information provided by hundreds of BRS victims

  • - Add your BRS bite experience to the Bite Site

  • - Analyze the Bite Site data by State, Month and Body Part

    eMedicine - Spider Envenomations, Brown Recluse : Article by ...
    Medical information about brown recluse spider bites.

  • Pathophysiology: Brown recluse spider bites can cause significant cutaneous injury with tissue loss and necrosis

  • Recently, reports of persons with 'spider bites' presenting to emergency departments have reached near urban legend proportions, prompting many physicians to question the diagnosis of a brown recluse bite in nonendemic areas

  • A more likely explanation for this epidemic of spider bites is in fact community-acquired methicillin-resistant Staphylococcus aureus (MRSA) skin infections

  • Symptoms of systemic loxoscelism are not related to the extent of local tissue reaction and include the following: Morbilliform rash Fever Chills Nausea Vomiting Joint pain Hemolysis Disseminated intravascular coagulation (DIC) Renal failure Seizures Coma Physical: Edema around the ischemic bite site produces the appearance of an erythematous halo around the lesion

  • Medical/Legal Pitfalls: Failure to warn patients about potential complications Failure to arrange follow-up care Failure to evaluate the patient for potential complications Failure to diagnose brown recluse spider bite Failure to consider G-6-PD status before initiation of dapsone therapy Caption: Picture 1


    Photo by

    eMedicine - Brown Recluse Spider Bite : Article by Adam S Stibich, MD
    Article by Adam S Stibich, MD.

  • Bites are rare, even in houses heavily infested with brown recluse spiders; therefore, a diagnosis of brown recluse spider bite is quite unlikely in areas that lack significant populations of Loxosceles spiders

  • Bites of the recluse spider can cause a condition termed necrotic arachnidism, which begins with the development of an eschar at the bite site, followed by tissue necrosis and skin sloughing

  • While most recluse bites heal uneventfully, some have a protracted course, with the wound taking months to resolve completely

  • Genital bites have been seen on patients using outhouses

  • Pathophysiology: Bites and envenomation range from a mild, local, urticarial reaction to full-thickness necrosis

  • This explains why early dapsone initiation may be important to limit necrosis in bites destined for that reaction

  • Frequency: In the US: In 1994, 1835 brown recluse spider bites were reported to poison control centers nationwide

  • Internationally: The incidence of bites and envenomation is unknown

  • Cutaneous loxoscelism is not uncommon with bites

  • History: Constitutional symptoms, including macular, papular, urticarial, petechial, scarlatiniform, or morbilliform eruption Hematologic disorders, such as hemolysis, hemoglobinuria, thrombocytopenia, disseminated intravascular coagulation, methemoglobinemia, and shock (rare but serious complications) Fever Headache Malaise Arthralgia and rhabdomyolysis Nausea Vomiting Renal failure Physical: The bite typically is painless, and findings of a central papule and associated erythema may not be seen for 6-12 hours

    Avoiding Brown Recluse Spider bites
    Article from the University of California at Riverside.

  • But brown recluse spider bites are not common

  • are living with millions of brown recluses everyday and bites are a rare occurrence

  • I have heard from several people who collect dozens of recluses in their homes every year and nobody in that household (including their little babies) has ever shown evidence of a bite

  • Every one you catch is one less recluse that can bite you

  • Many bites have occurred when people put on clothes that had been lying around for several weeks or months, and pressed the spider against their skin

  • Of course, check the gloves first for spiders, or stomp on the gloves first to squash a spider (as disgusting as it might seem to put on a glove with a squished spider in the finger, squished spiders don't bite.) Other things you should know about brown recluses: Most households with brown recluses never experience a bite 90% of all brown recluse bites heal without severe scarring

  • Many brown recluse bites cause just a little red mark that heals without event

  • Despite all the hoopla surrounding the brown recluse, there is still not one PROVEN death due to brown recluse bite

  • (No, wait, don't write me about someone who died and 'the doctor said' it from brown recluse! This information originates from two separate publications in medical journals written by two recluse venom experts who are medical doctors, who have been studying the medical implications of recluse bites for decades in Missouri and Tennessee where brown recluses occur frequently, and who know much more about the effects of recluse venom than your local doctor

    Entomology - Bites and Stings of medically important venomous ...
    Medical journal article with photographs, symptoms, preventions, and treatment.

  • Bites and Stings of medically important venomous arthropods and P

  • Toxicologically, there is far more diversity in spider venoms than in the venoms of Hymenoptera and scorpions, so that the correct identification of spider bites has special significance

  • Spiders are rarely correctly identified by bite victims or their physicians and are readily transported by human commerce out of their native range

  • There are stellar reviews of the toxicology of arthropod venoms and poisons 1, 2 , as well as an excellent quick guide to bites and stings of arthropods 3


  • STING In discussing human envenomation incidents, quite often both the lay and medical communities use the words "bite" and "sting" interchangeably, even in the same sentence, to describe one mode of venom injection

  • In the strict sense, "bite" describes venom injected via structures associated with the mouth such as fangs or mandibles and "sting" connotes the injection of venom via a tapered, posterior structure most accurately called a sting (or colloquially, stinger)

  • Except the carpenter bee, all insects shown are social, and create nests inhabited mostly by sterile workers

    Brown Recluse Spider Bites
    A variety of pictures of brown recluse spider bites in different stages.

  • Brown Recluse Spider Bites Reference Information Be sure to also visit our reference section for information and pictures of the

  • Brown Recluse Spider Bite on Ankle 2 Years Old This young gentleman was bitten by a brown recluse on his ankle

  • Brown Recluse Spider Bite on Thigh This middle-aged man was bitten on his left thigh by a brown recluse spider

  • This reaction is more severe with female brown recluse bites as opposed to male brown recluse bites


  • Day 1 Day 2 Day 9 Day 11 Shift Graft 38 days later Brown recluse spider bite on the right hand of middle-aged woman

  • Well over 90% of spider bites have one single lesion

  • Understandably, this is difficult but will help the healthcare practitioner treat the bite

  • Cleaning the bite area is of the utmost importance

  • Basic wound care are the essentials in all bites

  • Use of the images is prohibited without the express written consent of Survive Outdoors Inc

  • Benefits

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    Brown Recluse Spider
    Information and pictures from the central US; bite treatment.

  • They are usually non aggressive, and bites are usually sustained by rolling over in bed, putting on socks and shoes, or carrying boxes out of a dark basement

  • It's very common for this bite to be painless at the time that it occurs

  • The venom is not completely understood, however we do know that it causes severe tissue death at the bite site and less often generalized reactions including renal failure, and even death

  • In 2-3 days an ulcer may occur at the bite site

  • The best way to identify a brown recluse spider bite is by identification of the spider

  • Outdoor Treatment for Brown Recluse Spider Bite: Elevation of the extremity is important

  • Keep the bite site clean until reaching your health care provider for further treatment

  • Use of the images is prohibited without the express written consent of Survive Outdoors Inc Poisonous Hobo Spider and Brown Recluse Spider ...
    Commercial website describes the Hobo spider (found in the northwestern US) and
    brown recluse spider (found in the southern US) and their bites.

  • Have a question that might have been asked before? Check out our of other people's experiences with Hobo Spiders and its BITE

  • Despite their increasing range and population, public awareness of these spiders has been surprisingly low, primarily because the has been inaccurately blamed for the bites that people receive from Hobo Spiders

  • What does their bite look like? To the left is a picture of a Hobo Spider bite

  • About 50% of Hobo Spider bites are 'dry, ' meaning that no venom is injected and nothing happens to the victim

  • Typically, when venom is injected, the victim will experience an immediate redness which develops around the bite then begins to disappear within a few hours

  • Very often, for the first 24 hours, the bite appears to be no worse than that of a mosquito; then it begins to blister in the center

  • This ulceration 'scabs' over within three weeks from the initial bite, leaving a permanent scar

  • If the bite is delivered in fatty tissue, the lesion may be very deep and extensive, not healing for over two or three years

  • In extreme cases where the bite was not taken care of early, skin graft, amputation, and the possibility of bone marrow failure may occur

    MedlinePlus Medical Encyclopedia: Insect bites and stings
    Prevention, symptoms, images, and treatment.

  • The bite from fire ants and the sting from bees, wasps, and hornets are usually painful

  • Bites caused by mosquitoes, fleas, and mites are more likely to cause itching than pain

  • Considerations In most cases, bites and stings can be easily treated at home

  • However, some people have a severe allergic reaction to insect bites and stings

  • Some spider bites, like those of the or brown recluse, are also serious and can be life-threatening

  • Most spider bites, however, are harmless

  • General steps for most bites and stings: Remove the stinger if still present by scraping the back of a credit card or other straight-edged object across the stinger

  • For those who have a serious allergy to insect bites or stings, carry an emergency epinephrine kit (which requires a prescription)

  • Any duplication or distribution of the information contained herein is strictly prohibited

    Spiders of Medical Importance (006) (267)
    University of Nebraska Cooperative Extension in Lancaster County factsheet and
    audio on local spiders of medical importance (black widow, brown recluse, ...

  • Of these, only a few species are considered to have bites that are of medical importance

  • Spiders are often blamed for many more bites than they actually commit

  • In general, most spider bites will not harm most people except for slight discomfort for a limited time after being bitten

  • A few individuals may be hypersensitive to the bites of a particular species, but this allergic reaction won't be known until after the person gets bitten

  • (Since the demise of the outdoor privy, the incidence of bites from black widows has declined greatly!) Black widow venom is a nerve poison and is even more toxic to humans than the prairie rattlesnake

  • Fortunately, the amount injected from a black widow bite is very small

  • With humans, the bite may not be felt at first, although a slight local swelling around two tiny spots may be observed

  • After a short time, there will be severe pain at the site of the bite which will spread throughout the body

  • so the incidence of severe reactions to the bite is very infrequent

  • Initially, there may be little or no pain from a brown recluse bite, but, over the course of several hours, an intense localized pain develops, followed by inflammation of the area


    The Official Brown Recluse Spider
    A vast amount of information about the brown recluse spider and its bite: symptoms,
    treatment, pictures of bites and notes on behavior and habitat.

  • ------------------ Necrosis produced in the bite of a Loxosceles In his research of three years found that the houses have an average of 65 of these spiders

  • The bite of a brown recluse can cause slight injuries that take long to heal and causes serious damages in the tissue

  • The bite of the recluse spider can go from slight to serious, and sometimes can also be lethal

  • Brenda Gilmore | Reproduction in whole or in part is prohibited without the written permission of the publisher

    ADW: Loxosceles reclusa: Information
    Animal Diversity Web article about the poisonous brown recluse spider, also known
    as the violin spider.

  • Economic Importance for Humans: Negative Their bites can be mild to serious and occasionally fatal

  • As of 1984, at least 5 deaths had been reported from their bites in the USA

  • The toxins in the bite kill the cells surrounding the puncture, producing a black gangrenous spot

    Black Widow Spiders and Other Spiders of Medical Importance
    Brief information on the black widow and brown recluse; links to related web sites.

  • Black Widow Spiders and Other Spiders of Medical Importance Web Gateway For Links on The Widow Spiders The Black Widow So beautiful, so filled with wonder You have class with the Arachnids Latrodectus mactans is your scientific name Your venomous bite is what gives your fame Beware of her sting, she'll get you on the arm Fall not for her false lustrous black charm Avoid her at all costs, don't get too close Her neurotoxin will take your breath away For then they may be doing your post

  • Some report that the widow spiders are aggressive but observations shows that they are very timid and have no instinct to bite humans

  • Most deaths in the United States attributed spider bites are caused by the widow spiders, rarely is the brown recluse's bite lethal

  • The bite of the black widow is painful and may cause death if medical attention is not sought immediately

  • Fortunately, the black widow is shy and does not bite without great provocation

  • If bitten by a black widow place ice wrapped in a washcloth or other suitable covering on the site of the bite for 10 minutes and then off for 10 minutes

  • The brown reculse spider's bite is necrotizing and the site of the bite is very slow to heal

    Introduction and guide from the City of Phoenix, Arizona on snake, insect, gila
    monster and africanized honey bee bites.

  • BITES AND STINGS About 45, 000 people are bitten by snakes every year in the United States

  • More than half of the poisonous snakebites involve children, and most occur between April and October

  • Of the poisonous bites in the United States, 55 percent are from rattlesnakes, 34 percent from copperheads, 10 percent from water moccasins, and onepercent from coral snakes

  • Rattlesnake bites account for 70 percent of the fatalities and between 95 and 98 percent of the bites occur on extremities

  • Each year the Samaritan Regional Poison Center has more than 65 calls about rattlesnake bites

  • Baby rattlesnakes are capable of a venomous bite from birth

  • Nonpoisonous snakebites are not considered serious and are generally treated as minor wounds; only poisonous snakebites are considered medical emergencies

  • Symptoms generally occur immediately, but only about one third of all bites manifest symptoms

  • In 50 percent of coral snake bites, no venom is injected because the coral snake has to chew the skin for envenomation to occur

  • In as many as 25 percent of all venomous pit viper bites, no venom is injected, possibly because the fangs may be injured, the venom sacs may be empty at the time of the bite, or the snake may not use the fangs when it strikes

    CNN - America's scariest critter: The brown recluse spider ...

  • Source: University of Kentucky Department of Entomology (WebMD) -- Most people are wary of spiders, and for good reason -- although most spider bites are simply irritating, a few can have dangerous and even fatal consequences

  • But a family of spiders common in the United States has a bite that can lead to a severe, disfiguring wound or even death

  • According to the Centers for Disease Control and Prevention (CDC), nearly 10, 000 spider bites are reported to poison-control centers each year, of which around 20 percent come from brown recluse spiders

  • The number of brown recluse spider bites may even be higher: More than half the total number of spider bites reported are from 'other or unknown' species of spiders

  • And although the brown recluse, like most spiders, is seldom aggressive and will only bite when it feels threatened, this can happen any time a person grabs a piece of lumber, rolls over in bed when a brown recluse spider happens to be present or puts on a shoe in which the spider is passing some time

  • Although the severity of a bite from one of these spiders can vary, potentially having little or no effect on the victim, a brown recluse bite also can lead to severe problems including skin ulceration and tissue death, or necrosis

    Don't Let the Bugs Bite
    Bites and stings from insects, including spiders, ticks, mites, mosquitoes, flies,
    fleas, ants, bees, and wasps, are common in children.

  •  You are here: >>> > > > FREE Newsletter Sign Up Now for the Pediatrics newsletter!   Search Pediatric Resources Avoiding Bug Bites Elsewhere on the Web Most Popular Related Topics Don't Let the Bugs Bite From, Your Guide to

  • Part 1: An introduction to insect bites and stings Insect bites and stings are very common in children, especially during the spring and summer months

  • Among the arthropods that often bite and sting are spiders, ticks, mites, mosquitoes, flies, fleas, ants, bees, and wasps

  • While most insect bites only result in mild local reactions, they can cause more serious conditions, such as anaphylactic reactions and Lyme disease

  • Knowing how to prevent and treat common insect bites and stings, and knowing when to not overreact, can help keep your kids safe and healthy

  • Symptoms The symptoms that can be caused by insect bites depend on the type of insect and how sensitive you are to it

  • Reactions that stay localized to the sight of the bite or sting are usually not serious

  • You should seek immediate medical attention or activate your local emergency services if your child has these symptoms following an insect bite or sting

    First Aid for Animal Bites - American Institute for Preventive ...
    Preventive measures and treatments. From the American Institute of Preventive Medicine.

  • First Aid for Animal Bites © The most common animal bites in the United States are from dogs, cats and other humans in that order

  • Less common, but often more dangerous, are bites from skunks, raccoons, bats and other animals that live in the wild

  • The health risks of an animal bite depends on the animal and how severe the bite is

  • Bleeding Infection Lyme Disease - a bacterial infection spread by deer tick bites Lockjaw - painful, persistent stiffness of the jaw due to a toxin which can be prevented with up- to-date tetanus immunizations In the United States, particularly in the northeastern states, skunks, raccoons, bats and foxes are the main carriers of rabies

  • Rabid animals can show these signs: strange behavior such as activity by day for animals that are normally active by night agitation, lack of fear of humans foaming at the mouth Anti-venom treatment is available for poisonous snake bites at emergency medical facilities

  • It needs to be given within four hours after the bite

  • Prevention Here are some ways to prevent animal bites: Never leave a small child alone with a dog or cat, even if it's a puppy or kitten

    Spiders - Information and Spider Control
    Products and services listing. Serving Kansas City and surrounding areas.

  • They usually bite humans by mistake as someone grabs a piece of wood or puts their hand near them for some other reason

  • (More on and Orb) The Brown Recluse is a hunting spider and bites again occur by accident

  • (Pictures and more on .) But with both of these, as they frequently infest houses, bites are more common because they may be anywhere hiding

  • They bite only for protection

  • If these bite they will leave a small welt on your skin, but unless allergic, it is no worse than a mosquito bite


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