An<unk> is a sore on the skin or a mucous membrane, accompanied by the disintegration of tissue.<unk>  can result in complete loss of the epidermis and often portions of the dermis and even subcutaneous fat.<unk>  are most common on the skin of the lower extremities and in the gastrointestinal tract. An<unk> that appears on the skin is often visible as an inflamed tissue with an area of reddened skin. A skin<unk> is often visible in the event of exposure to heat or cold, irritation, or a problem with blood circulation. They can also be caused due to a lack of mobility, which causes prolonged pressure on the tissues. This stress in the blood circulation is transformed to a skin<unk>  commonly known as bedsores or decubitus<unk> .<unk>  often become infected, and pus forms.
Ulcer 
Clinic
Papule
Dermal patch
Nail 
Syringe
Periwound
Crown 