Some medications, such as blood thinners, can make bruising happen more easily and appear more pronounced. Bruising can also result from skin conditions such as petechiae, which is caused by small capillary hemorrhages, or purpura, caused when small blood vessels leak.
Other contributors to bruising include:
- Age. Capillaries can weaken as you get older, making it easier to bruise from a minor bump.
- Sun exposure. Excessive time in the sun can weaken your skin’s top layer and lead to bruising.
- Diet. A lack of vitamins C and K in your diet can affect your capillaries’ ability to clot properly.
When you can identify the cause of your bruise, there’s generally little reason to be concerned. However, if you bruise often and easily for no known reason or in areas where bruising isn’t common (the lower back, for example), consider consulting a physician.