Bed sores are a very painful condition that affects many elderly or bed ridden people. Bed sores, or pressure sores, are tissue damage to the skin caused by prolonged pressure to one area of the body. They are especially prone to spots that are bony, like the knees, hips, buttocks and heels.
There are four different stages of pressure sores. Stage one the skin is still intact. The skin becomes red and is painful to the touch, sometimes the skin texture or temperature changes as well. Stage two is where the spot becomes an open wound. Sometimes it appears as a blister. Stage three occurs once the ulcer has become a deep wound, often times yellow in color due to the dying skin. Other layers of skin may also be affected at this stage. Stage four begins when there is massive tissue loss. Bone, muscle or tendons may become exposed.