Why is it that I can get the slightest bump and the next day, I've got a huge bruise? Sometimes bruises show up and I don't even remember hurting myself.

A bruise develops when small blood vessels under the skin tear or rupture. Blood leaks into tissues under the skin and causes the black-and-blue color.

As bruises heal, usually within 2 to 4 weeks, they often turn colors, including purplish black, reddish blue, or yellowish green. Sometimes the area of the bruise spreads down the body in the direction of gravity. A bruise on a leg usually will take longer to heal than a bruise on the face or arms.

Bruising easily does not mean you have a serious health problem. Tendency to bruise easily sometimes runs in the family. Also, you should know that women bruise more easily than men, especially from minor injuries on the thighs, upper arms, and bottom.

The amount of fat covering your body may also play a part. If you don't have much fat on your bones, then bruises will appear with the slightest knock. That's why children and the elderly tend to bruise easily.

Sometimes bruises are bumpy. This is called hematoma, and happens when blood collects and pools under the skin. This is no cause for concern, unless it is accompanied by a greater injury or intense pain.

Fit's Tips: If you are concerned about your vulnerable bruising skin, you may want to get checked by a doctor to make sure you're getting enough vitamins B12, C, K, and folic acid. Deficiencies in these vitamins could also be causing your skin to bruise easily.