Final answer:
Skin breakdown, such as redness or discoloration, is an early sign of potential pressure ulcers like bedsores, and blistering may occur in more advanced stages.
Step-by-step explanation:
When skin begins to break down due to excessive pressure or injury, one may see changes such as skin that is red or a different color than the surrounding area. In the case of bedsores, also known as decubitis ulcers, this skin breakdown is due to constant, long-term, unrelieved pressure on bony parts of the body. The presence of blisters indicates damage to the skin's layers from causes like sunburn or friction. Early signs of a developing bedsore can include skin that is red or a different color than the surrounding area, which often precedes more severe stages, like partial skin loss or blistering in the affected area.