Bedsores is pressure ulcers which occur over the bony prominences of the body due to pressure over the area for prolonged period or due to shearing or friction. Usually seen on bed ridden patients
As per the National Pressure Ulcer Advisory Panel, an organization which promotes the prevention and recommends the treatment options for different stages of bedsores; these are namely stage one to stage four.

The presenting symptoms of bedsores are also classified as per these stages. These are
I. Stage One: during the initial stage there are several characteristic features of bedsores; these are
a. the skin of the affected area is intact
b. the affected skin usually appears lighter in complexion in comparison to the adjacent skin especially in fair complexioned people
c. in dark complexioned people the affected area appear discolored
d. both in dark complexioned and fair complexioned person the affected skin does not blanch when compressing pressure is applied
e. the affected area feels hot or cold, painful to touch (tender), firm or soft in comparison to the adjacent normal skin
II. stage Two: in this stage several characteristic features appear; these are
a. damage to the outermost layer (epidermis) of the skin along with the layer of the skin just beneath the epidermis (dermis)
b. the affected women of the looks pink
c. typically at this stage the presenting lesions appear as blisters filled with blisters or already ruptured blister
III. Stage Three: in this stage the lesion gradually becomes deep with involvement of the health skin underneath. The lesion has a typical carter like area in the filled with yellowish dead tissue and crater like base of the lesion.
IV. Stage Four: in this stage there is deep skin lesion which may progress to the adjacent normal healthy area and may also extend below affecting the muscle, tendons and even bones.

There are several common places reserved for the development of bedsores; these are
1. People using wheel chair are supposed to be at risk of developing bedsores. There are some particular areas affected; these are the buttocks, the shoulder blades, back of the arms and legs which continuous cone in contact with the chair.
2. For completely bedridden people, the commonly affected areas are the shoulder blades, back of the head, shoulder blades, rim the ears, heels, ankles, hip joints, lower back area etc.

Complications of bedsores
1. Sepsis: in this condition the infective bacteria invades the body throughout the body. However as the condition is rapidly progressing and at late stage may lead to death of the person. Hence the doctors should treat the affected person urgently to prevent propagation of the disease and life of the patient
2. Cellulitis: it is characterized by infection of the skin and the soft tissue. Often the affected persons may not be able to feel pain however cellulitis may lead to serious complications
3. Infection of bones and joints: in severe cases of bedsores the infections from the bedsores may spread to the adjacent bones (osteomyelitis) and joints and cartilages (septic arthritis).
4. Sometimes a variety of squamous cell carcinoma may arise from the non healing ulcers (bedsores). These types of cancers are usually very aggressive in nature and require prompt surgical interventions as early as possible.