Do common household spiders bite?

Most spiders are not aggressive. They will bite when threatened, but they have no need to seek out humans. They do not require blood like female mosquitos. When a spider bites you in bed, if it is a spider, it is most likely because they became scared from being trapped between the sheet and your body. read more

Basically yes. Spiders do bite and are venomous( much like all snakes). But spiders for the most part lack the power to penetrate skin. And most spiders venom do nothing more than cause a slight irritation anyway. Pick up any spider in the uk without fear. You will get a worse bite off a bedbug or tick. read more