Let's start with a point of clarification. When they feel threatened, spiders - most of the time harmless - do not sting, they bite. We often think of a sting because of our associations with insects stinging. Note that the spider is not an insect either, but belongs to the arachnid group.
In any case, there is a wide variety of spider bites and possible reactions, depending on who is bitten and whether the spider species is venomous or not. However, there are only around ten species worldwide that are dangerous to humans. Apart from these rare specimens, spider bites can be disturbing, but 100% harmless.








