Frostbite occurs when a body part is exposed to extreme cold. If conditions are cold enough for the water within the tissues to freeze and form ice crystals, cell death can occur. The feet, hands, ears and nose are particularly prone to frostbite due to their location away from the body’s core. Mild

What Is Acute Inflammation? Inflammation is the body’s normal protective response to an injury, irritation, or surgery. This natural “defense” process brings increased blood flow to the area, resulting in an accumulation of fluid. As the body mounts this protective response, the symptoms of inflammation

Ulcers, which are open sores in the skin, occur when the outer layers of the skin are injured and the deeper tissues become exposed. They can be caused by excess pressure due to ill-fitting shoes, long periods in bed, or after an injury that breaks the skin. Ulcers are commonly seen in patients who have

What Is a Puncture Wound? Puncture wounds are not the same as cuts. A puncture wound has a small entry hole caused by a pointed object, such as a nail that you've stepped on. In contrast, a cut is an open wound that produces a long tear in the skin. Puncture wounds require different treatment from cuts

Foot bumps are bony projections that can occur anywhere on the foot. They can be a natural enlargement of a foot bone, or they can be an extra bone. They can be asymptomatic (without pain) or symptomatic (painful). If they are not painful, they can usually be accommodated by shoe gear. Painful foot

The most common cause of yellow discoloration in the toenails is a fungal infection. The fungus often develops underneath the nail, resulting in it becoming thick, raised, and yellow in color. Other potential causes for yellow discoloration of the nail include diabetes mellitus and lymphedema (chronic