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Easy bruising: Common as you age
Find out what causes easy bruising as you age and when you should discuss your bruises with your doctor.
By Mayo Clinic staffYet another bruise. What caused that dark, unsightly mark on your leg? You don't recall bumping into anything. But lately you've been bruising much more often than you used to. Should you be concerned?
It's common to experience easy bruising with increasing age, and most bruises go away without treatment. Still, easy bruising can sometimes be a sign of a more serious problem.
Age-related causes of easy bruising in older adults
Most bruises form when small blood vessels (capillaries) near your skin's surface are broken by the impact of a blow or injury. When this happens, blood leaks out of the vessels and initially appears as a bright or dark red, purple or black mark. Eventually your body reabsorbs the blood, and the mark usually disappears.
Some people — especially women — are more prone to bruising than are others. As you get older, several factors may contribute to increased bruising, including:
- Aging capillaries. Over time, the tissues supporting these vessels weaken, and capillary walls become more fragile and prone to rupture.
- Thinning skin. With age, your skin becomes thinner and loses some of the protective fatty layer that helps cushion your blood vessels against injury. Excessive exposure to the sun accelerates the aging process in the skin.
Generally, the harder the blow, the larger the bruise. However, if you bruise easily, a minor bump — one you may not even notice — can result in substantial discoloration. Your arms and legs are typical locations for bruises.
Medications and supplements can cause easy bruising
Blood-thinning drugs such as aspirin and warfarin (Coumadin) or medications such as clopidogrel (Plavix) reduce your blood's ability to clot. Because of this, bleeding from capillary damage that would normally stop quickly may take longer to stop, allowing enough blood to leak out to cause a bruise.
Corticosteroids cause your skin to thin, making it easier to bruise. Don't stop taking your medications if you experience increased bruising. Talk to your doctor about your concerns and ask what you should do.
Certain dietary supplements such as fish oil and ginkgo also may increase your bruising risk, since these supplements have a blood-thinning effect. Make sure your doctor is aware of any supplements you're taking — especially if you're taking them while on a blood-thinning drug. Your doctor may recommend avoiding certain over-the-counter medications or supplements.
Next page(1 of 2)
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- Coller BS, et al. Clinical evaluation of hemorrhagic disorders: The bleeding history and differential diagnosis of purpura. In: Hoffman R, et al. Hematology: Basic Principles and Practice. 5th ed. Philadelphia, Pa.: Churchill Livingstone; 2009. http://www.mdconsult.com/das/book/body/125159584-5/0/1854/1361.html?tocnode=56226558&fromURL=1361.html#4-u1.0-B978-0-443-06715-0..50123-0_4470. Accessed March 11, 2009.
- Mature skin. American Academy of Dermatology. http://www.aad.org/public/Publications/pamphlets/MatureSkin.htm. Accessed March 11, 2009.
- Ballas M, et al. Bleeding and bruising: A diagnostic work-up. American Family Physician. 2008;77:1117.
- Habif TP. Therapy and topical corticosteroids. In: Habif TP. Clinical Dermatology: A Color Guide to Diagnosis and Therapy. 4th ed. Philadelphia, Pa.: Mosby; 2004. http://www.mdconsult.com/das/book/body/125159584-17/0/1195/6.html?tocnode=51439871&fromURL=6.html#4-u1.0-B0-323-01319-8..50004-2_24. Accessed March 11, 2009.
- Korman NJ. Macular, papular, vesiculobullous and pustular diseases. In: Goldman E, et al. Cecil Medicine. 23rd ed. Philadelphia, Pa.: Elsevier Saunders; 2007. http://www.mdconsult.com/das/book/body/125159584-21/0/1492/1558.html?tocnode=54631981&fromURL=1558.html#4-u1.0-B978-1-4160-2805-5..50470-5_20181. Accessed March 11, 2009.
- Fish oil. Natural Medicines Comprehensive Database. http://www.naturaldatabase.com. Accessed March 11, 2009.
- Ginkgo. Natural Medicines Comprehensive Database. http://www.naturaldatabase.com. Accessed March 11, 2009.
