Bruising (Purpura)

These are “black and blue” marks or bruises, particularly on the arms and legs. They are usually a result of the skin becoming thinner with age and sun damage. Loss of fat and connective tissue weakens the support around the blood vessels, making them more susceptible to injury. If you put pressure on the area immediately after a bump, sometimes you can prevent the bruise. Bruising sometimes is caused by medications that interfere with blood clotting and by certain internal diseases. Bruising, especially in areas always covered by clothing, should be evaluated by your dermatologist.