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Many prescription and nonprescription medicines may reduce your blood's ability to clot and cause bruising or bleeding under the skin. A few examples are: Medicines (called blood thinners) that prevent blood clots. Also, taking a nonprescription medicine with a blood thinner may increase your risk of bruising and...
Discusses how and why bruises and blood spots might develop. Offers checklist to help you decide when to call a doctor. Offers home treatment and prevention tips.