A hematoma is a localized collection of blood in the tissues of the body outside of the blood vessels. A bruise is a discoloration of the skin that is a result of leakage of blood from capillaries into the skin. Bruises and hematomas are most commonly caused by injury to the tissues. Both minor hematomas and bruises are common results of activities from daily living and usually require no specific treatment. Seek medical care for any hematoma or spontaneous bruising that occurs without any known cause. Read more: Hematoma vs. Bruise Article
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A hematoma is a collection of blood that is outside a blood vessel. There are different areas where hematomas occur including; inside the skull, on the scalp, ears, septum, bones, finger nails, toe nails, and intra-abdominal.
A bruise, or contusion, is caused when blood vessels are damaged or broken as the result of a blow to the skin. The raised area of a bump or bruise results from blood leaking from these injured blood vessels into the tissues as well as from the body's response to the injury. Treatments include applying an ice pack and pressure to the area by hand.