伤口

What is a burn? A burn occurs when skin is injured by heat. Common causes of burns include hot or boiling liquids and solids, and flames. Burns can also be caused by the sun, radiation, friction, electricity and chemicals. There are three main types of burns: Superficial burns (first-degree burns):...

What is a leg ulcer? A leg ulcer is a wound on the leg or ankle. The wound is usually caused by damaged veins or veins not working properly. They can also occur due to blood clots, injuries or obesity. They are more common in older people with poor circulation....