Bumbo Baby Seats are popular, with almost 4 million having been sold since 2003. Parents like them and babies seem to like them too.
They can be dangerous though if they aren't used properly, including that you don't use them on a raised surface, like a table, countertop, or chair. According to the Consumer Product Safety Commission, "Infants aged 3-10 months old have fallen out of the Bumbo seat and suffered skull fractures and other injuries."
And these injuries continue despite the Bumbo recall in 2007. Since then, there have been 45 additional incidents, including 17 skull fractures. That is about the same number of incidents that occurred before the recall - 46 falls and 14 skull fractures. Maybe that shouldn't be too surprising though, since that recall simply involved adding a new warning label to the Bumbo - "WARNING - Prevent Falls; Never use on any elevated surface." It didn't actually change the design of the product at all.
The Bumbo isn't a baby sitter. Use it on the floor and only when you can be nearby to make sure your baby doesn't fall out. This is important because the CPSC reports "an additional 50 reports of infants falling or maneuvering out of Bumbo seats used on the floor and at unknown elevations." Remember that even on the floor, your baby can fall out of a Bumbo if they arch their back or move around too much, and either hit the floor or a nearby object.
Do you have a Bumbo Baby Seat? How do you use it? Do you ever misuse it?