A bedsore, also known as a pressure ulcer or pressure sore, is a localized injury to the skin and/or underlying tissue that typically occurs over a bony prominence due to pressure or pressure in combination with shear and friction. Bedsores are most commonly seen in individuals who are bedridden, use a wheelchair, or have limited mobility, as constant pressure on certain areas of the body can lead to reduced blood flow and tissue damage.

Bedsores typically develop in areas where bones are close to the skin surface, such as the heels, hips, tailbone, and elbows. These injuries can range from mild redness and discoloration of the skin (Stage 1) to severe tissue damage extending into muscles and bones (Stage 4).

Preventing bedsores involves relieving pressure on bony areas through repositioning, using supportive devices like cushions or mattresses, maintaining good skin hygiene, and ensuring proper nutrition and hydration. Prompt treatment of bedsores is essential to prevent complications such as infection, tissue necrosis, and other serious health issues.