Why Does My Eye Twitch?
What’s happening? Blood vessels under the skin have been broken and are leaking blood into the surrounding tissues. Bruises usually start as purple. As we all know from middle-school biology, blood that has not been oxygenated by your lungs is a dark color, which is why bruises first appear with that telltale eggplant tone. They then evolve through a series of colors, finally ending with a faint yellow/brown as the body begins to break down the pooled blood into a series of waste products and clear them away.
Why is your body doing it? A bruise is simply an indication of some kind of bodily trauma—minor or major. “It doesn’t serve a purpose,” says Cain. “It’s just a sign of your body’s ongoing healing attempt.”
What should you do? “The best treatment for a bruise is rest and ‘tincture of time,’ ” says Cain. Elevating the injured area and applying compression to it—as you raise your arm and then get it wrapped with a dressing after giving blood—may decrease the size of the bruise if you do it soon after the injury. If you’re really sore, Cain recommends trying over-the-counter painkillers such as naproxen or ibuprofen. You should see a doctor if you bruise very easily (from the most minor injuries), your bruises do not go away, or if you have a very large bruise (for instance, it covers a large part of your arm or leg), which can be a sign that you have lost a lot of blood.