There are several reasons why some people bruise more easily than others. Aging naturally makes the skin thinner and blood vessels more fragile. Certain medications, including blood thinners, aspirin, corticosteroids, and some anti-inflammatory drugs, may increase the likelihood of bruising. Vitamin deficiencies, especially low levels of vitamins C or K, can also affect blood vessel strength and normal clotting.
In rare cases, frequent unexplained bruising may be associated with disorders affecting blood clotting or the bone marrow. Conditions such as leukemia, lymphoma, severe liver disease, or platelet disorders may cause bruises to appear more easily because the body’s ability to produce or use blood cells is impaired. However, bruising alone is not enough to diagnose these illnesses. Doctors evaluate a combination of symptoms, physical examination findings, blood tests, and sometimes imaging studies before reaching any conclusion.
