What are the stages of bed sores?

Bed sores are categorized based on their severity (stage 1, stage 2, stage 3 or stage 4 / stage I, stage II, stage III or stage IV). The National Pressure Ulcer Advisory Panel, a professional organization dedicated to the prevention and treatment of bed sores, has set forth specific characteristics to help medical professionals objectively categorize a wound.





Occasionally, a bed sore may be categorized as ‘unstageable‘.  Unstageable bed  sores are usually referred to as an extremely advanced wound where there is involvement of skin, muscle and bone.

Stages of bed sores