The answer to 'why do I have spider' is that spiders are a common household pest that can appear for a variety of reasons. Spiders are attracted to areas with an abundance of insects, which can provide them with a steady food source. Additionally, they may be seeking shelter, warmth, or a place to build their webs.
Some common signs of a spider infestation include seeing spiders or their webs, egg sacs, or droppings. Spiders can also leave behind shed exoskeletons as they grow. While most spiders are not dangerous to humans, some species can be venomous and should be handled with caution. If you have a significant spider problem or are concerned about the presence of potentially dangerous spiders, it's best to call a professional pest control technician for an inspection and treatment.