What are some reasons for unexplained bruises?
Some people, especially women, are more prone to bruising than others, so one possible explanation may be that you are less likely to notice the injury that triggered the bruising. Moreover, as people grow older and continue to expose themselves to the damaging effects of the sun, the skin becomes more susceptible to bruising. With time, the skin thins, losing some of its fatty layer that cushions blood vessels against damage. Also, capillary walls become more fragile, and tissues that support blood vessels weaken as people age. So, the bumps — especially to the arms and legs — that once went unnoticed may now, as bruises, be hard to miss. Sometimes, unexplained bruises, or blood spots under the skin that look like bruises, can point a finger at more serious medical conditions, including: effects of medications or supplements — aspirin, anticoagulants (blood thinners), corticosteroids, and dietary supplements, such as fish oil, ginkgo, ginger, and garlic a bleeding or clotting disorder
