I used to bruise a lot-- just seems to be part of my genetics and of course, worse as you get older. I found a solution that works for me that I share with everyone. For long term to prevent bruising, I take 1000 mg of bioflavonoids (recommended to me by a health food specialist)-- just good for your body overall (contains rosehips). Take 1 or 2 a day and in a couple of months, you should see bruising diminish. For immediate prevention, I do what my grandmother told me to do decades ago-- wet the bruise area with baby oil. This must be done really quickly-- like within 3-4 minutes. It completely stops the bruising most of the time for me. I always have a little bottle on hand. I know everyone is different but these are really simple solutions to a problem that plagues a lot of people, so I like to share my solution. You can find Bioflavonoids on Amazon etc. -- you just have to remember that like other supplements, they will take some weeks to work.