What are Hematomas?
Hematomas are a collection of blood, usually partially clotted, that tends to result from the breakage of a vein or blood vessel. Simple hematomas can be the result of minor trauma. A bruise is an alternate name for hematomas, but generally when doctors refer to hematomas, they are referring to hematomas from major traumatic injury or from surgery. During surgery, damage to surrounding blood vessels can cause hematomas to form, which tends to slow down healing. In some cases, exceptionally large hematomas may need to be drained so that surgery sites are not impacted by the collection of partially clotted blood.