Bruising on your feet, knees, and legs
Similar to other parts of the body, the legs are especially susceptible to bruise. Because it often takes a few days for bruises to become visible, it can be easy to forget a minor injury that could be the one to blame. Older people often have a greater chance of bruising, because their skin is often more delicate than that of younger adults due to decreased deposits of fat under the skin and diminished skin’s capacity to manufacture collagen.
As Gary Goldenberg, MD, assistant professor of dermatology at Mt. Sinai Hospital, points out, bruising is especially common among individuals over 60. If you have taken aspirin, anti-inflammatory drugs (especially ibuprofen), or corticosteroids (e.g. for treating asthma or eczema), they could be the root causes of unexplained bruising.
If the bruises are still present, even with the above home care interventions, see your doctor for several weeks down the road. You may be struggling with a more significant medical condition or illness that is restricting your circulation, weakening the capillaries in the blood or affecting the capacity of the blood to clot.