• abdominal
  • This can affect the body in several ways, including causing painful abdominal cramps The atracotoxins of Australian funnel-web spiders work by opening sodium channels, causing excessive neural activity including strange sensations (paresthesias), muscle contractions, unstable blood pressure (hypertension or hypotension). (wikipedia.org)
  • symptoms
  • Confidence in the diagnosis is graded as putative, presumptive, probable or documented based on whether the spider is endemic to the area, whether the lesion, symptoms and course are typical, and of course if the spider is positively identified by a qualified authority. (vesalius.com)
  • However, without a spider, either through inability to communicate or unawareness, the diagnosis may be missed as symptoms overlap with a variety of other serious clinical syndromes such as tetanus or acute abdomen. (wikipedia.org)
  • Symptoms self-resolve in hours to days in a majority of bites without medical intervention. (wikipedia.org)
  • known
  • Spiders known to have necrotic venom occur most notoriously in the family Sicariidae, which includes both the recluse spiders and the six-eyed sand spiders. (wikipedia.org)
  • Spiders in this family possess a known dermonecrotic agent sphingomyelinase D, which is otherwise found only in a few pathogenic bacteria. (wikipedia.org)
  • often
  • Typical outdoor habitats in which spiders are often found include wood and rock piles, rodent burrows, and hollow tree stumps. (ufl.edu)
  • The genitals were often the site of the bite. (wikipedia.org)
  • Pain
  • About 75% of "wet" bites will have localized pain and nothing more. (wikipedia.org)
  • Intense local pain develops 5-10 minutes after the bite and is followed by sweating and piloerection (goosebumps) within an hour. (wikipedia.org)