Spider Bites Ohio's Biting Spiders | Preventing Spider Bites | What to do if Bitten The bad news is that some spiders do bite people, and these bites can be dangerous. The good news is that spider bites are actually quite rare events. A recent summary of reported spider bites in the United States between 1989 and 1993 included fewer than 5, 000 incidents per year. Only a few of the bites of widow ...