Usually, a bruise does not necessitate a visit to the doctor. But if it becomes very swollen or more painful than bruises you have had in the past, or if you can feel firmness under the skin, it should be checked. Sometimes bruising can cause a hematoma, which happens when a lot of blood seeps out from the vessel and then coagulates like jelly. This collection of blood can go so far as to organize itself into a hard clot the consistency of wood. Both of these are very dangerous and usually occur after there is been major trauma (such as a surgical procedure) to the area. Left unattended, this congealed blood can lead to a devastating bacterial infection. A clot can break into chunks, migrate to somewhere else in the body, and block a vessel, causing a heart attack or a stroke. To treat a hematoma, a doctor must open up the skin surgically and expel the congealed mass or the clot. It is a painful, but vital, outpatient procedure.

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Simple Skin Beauty: Every Woman's Guide to a Lifetime of Healthy, Gorgeous Skin
- Apply ice or a cold pack, wrapped in a towel, for the first 24 hours after the injury.
- Elevate the area to reduce swelling.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.