Can bed sores be fatal?

Bedsores fatal: Bedsores (pressure ulcers, decubitus ulcers) can get very large, go to deeper structures, or can be so numberous that they at the very least be associated with a terminal process for a patient. Remember, the skin is the largest organ of the body; it is the most visible one also. Equating cause of death with the effects of the dying process can be a difficult matter.

Yes : Bed sores are open wounds and they can lead to infections, which in turn can kill.