What are sores caused by prolonged pressure on the skin known as?

Sores caused by prolonged pressure on the skin are commonly referred to as decubitus ulcers or bedsores. These terms describe injuries that occur when there is sustained pressure on the skin, particularly over bony areas, which can impede blood flow. When the skin is under constant pressure, it can lead to tissue damage and eventually result in open wounds or sores.

The term "decubitus ulcer" is often used in medical contexts to denote pressure sores specifically related to prolonged inactivity, such as lying in bed or sitting in a wheelchair for extended periods. Meanwhile, "bedsores" is a more colloquial term that conveys the same idea and is frequently used in everyday language. Both terms effectively describe the same condition, hence the inclusion of both in the correct answer, which acknowledges the usage of multiple terms in different contexts.