White tip spiders are one of the most common types of spiders in Australia. They are medium sized spiders, usually grey to black in color, and have an off-white tip at the end of their abdomen. This is where their name comes from. Their webs are typically made in the shade, containing a thickly spun cone. The spider’s bite is often described as painful, but it is rarely a serious infection.
While it is commonly believed that white-tailed spiders cause necrotising arachnidism, which results in an ulcer, there is no scientific evidence to support this. In fact, many people who claim they have been bitten by a spider are misdiagnosed.
If you have been bitten by a spider, you may have noticed redness and swelling, as well as pain and nausea. These symptoms are not uncommon, and they can occur within 24 hours of a bite. However, the exact nature of the infection and the symptoms vary greatly.
Necrotizing arachnidism occurs when an infection causes an inflammatory reaction that destroys the tissues. There are a few types of arachnids that can cause necrotising arachnidism, including brown recluse and wolf spiders. Some species are more likely to cause necrotizing arachnidism than others.
A recent study by Dr Geoff Isbister and Mr Matthew Gray examined the medical records of 130 patients who had been bitten by a white-tailed spider. The study did not identify the specific species of the spider involved, but the venom was believed to have bacteria in it, which could cause an ulcer.