Several varieties of spiders may be in the household. With a few exceptions, they are relatively harmless, staying in corners and forming webs in undisturbed areas of the home. Some are even beneficial, feeding on other household pests such as flies and moths. Occasionally they do bite humans, but in most cases this is not a hazard.
Spiders usually have a round or oblong body and eight legs.
They vary in color, size and hairiness. Most spin silken webs that will be in undisturbed corners and underneath furniture in the home and can vary in size and shape. Spiders wander in from outdoors and seek warm, moist environments or undisturbed areas of the home to spin their webs. When spiders bite humans, it is typically because they have been lain on, stepped on or otherwise provoked. Few spiders such as the brown recluse and black widow are dangerous to humans when they bite, but rarely are their bites fatal.