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Released Date : 2021-04-05
Hematoma is generally defined as a collection of blood outside of blood vessels. Most commonly, hematomas are caused by an injury to the wall of a blood vessel, prompting blood to seep out of the blood vessel into the surrounding tissues. A hematoma can result from an injury to any type of blood vessel (artery, vein, or small capillary). A hematoma usually describes bleeding which has more or less clotted, whereas a hemorrhage signifies active, ongoing bleeding.
It is a very common problem encountered by many people at some time in their lives. These can be seen under the skin or nails as purplish bruises of different sizes. Skin bruises can also be called contusions. Hematomas can also happen deep inside the body where they may not be visible. These may sometimes form a mass or lump that can be felt. Sometimes hematomas are named based on their location. Some examples include:
Most hematomas resolve spontaneously over time as the blood debris is removed and the blood vessel wall is repaired by the body’s repair mechanisms. Other times, surgically removing or evacuating the blood in a hematoma becomes necessary based on its symptoms or location.
Symptoms of a hematoma generally depend on its size and location. Pain, swelling, redness, and disfiguring bruises are common symptoms of hematoma in general. Some symptoms specific to the location of a hematoma are:
Sometimes there are not any symptoms at all associated with even a very large hematoma. For example, if bleeding happens to be inside the abdominal cavity, it can expand into a very large size before it causes any symptoms. This can happen because the hematoma can spread in a relatively free space without pressing on any organs to cause pain or other symptoms.
On the other hand, a small hematoma under the nail can present with a lot of pain because the blood expands into a very tight space under the nail bed and causes inflammation and irritation of the nearby nail and skin, resulting in pain and swelling. Depending on the location of the hematoma, a mass or lump can sometimes be felt.
Hematomas are usually caused by trauma, whether it is the result of a car accident, a minor bump, a cough, or an unknown event. The blood within blood vessels is continually flowing and therefore does not clot or coagulate. When blood leaves the circulatory system and becomes stagnant, there is almost immediate clotting. The greater the amount of bleeding that occurs, the larger the hematoma.
Anticoagulant medications, including aspirin, warfarin (Coumadin), clopidogrel (Plavix) and dipyridamole (Persantine) may be associated with blood clots. Diseases or infections may occur that decrease the number of platelets in the bloodstream or their ability to function. The platelets are the cells that help initiate blood clotting. If platelets are inhibited, bleeding can continue and hematomas can develop and expand. Examples of bacterial infections, autoimmune diseases, and other situations that may lead to hematomas include:
Examination of a hematoma includes physical inspection along with a comprehensive medical history. In general, there are no special blood tests for the evaluation of a hematoma. However, depending on the situation, tests including complete blood count (CBC), coagulation panel, chemistry and metabolic panel, and liver tests may be useful in evaluating a person with a hematoma and to assess any underlying conditions and evaluate whether these are responsible for the hematoma formation.
Treatment of hematoma depends on the location, symptoms, and the clinical situation. Some may require no treatment at all while others may be deemed a medical emergency. For certain small and symptom-free hematomas no medical treatment may be necessary. On the other hand, symptomatic hematomas or those located in certain locations sometimes require medical or surgical treatment. Even though no specific mediation is available for the treatment of hematomas, management of any related symptoms can be achieved by medications. For example, pain from a hematoma can be treated with pain medications such as acetaminophen (Tylenol).
Surgical drainage is a common method of treatment for certain hematomas. Presence of symptoms and location of the hematoma generally dictate what type of procedure is needed and how urgently it needs to be done. For example, a subdural hematoma resulting in symptoms such as headache, weakness, or confusion may require urgent drainage by a neurosurgeon. Conversely, if a subdural hematoma is thought to be symptom-free and chronic, it may be left alone and monitored occasionally by imaging studies (CT scan).
Furthermore, a subungual hematoma with severe discomfort can be drained through the nail to allow the blood to drain from the space between the nail and the underlying tissue. Large subungual hematomas that are left in place can sometimes compromise the nail and result in the nail dying and falling out. Draining such hematomas can save the overlying nail. If any underlying cause or contributing factor exists that predisposes to bleeding, its correction or treatment may also be a necessary step in treating hematomas. For example, if a person with a hematoma is on a blood thinner medication for another condition, the treating doctor may opt to discontinue or even reverse the blood thinner, depending on the individual situation.
Medical care and definitive treatment of a hematoma depends upon its location, what body parts are affected, and what symptoms are present. For example, a small hematoma of the brain may be observed if the patient is fully awake, while another patient with a head injury may require an operation to save brain tissue. The same may be true with a patient with an intra-abdominal hematoma. If the patient is stable, observation may be appropriate, but if shock develops, some surgical intervention may be required.
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Frequently asked questions
Q.How long does it take for a hematoma to go away?
The swelling and pain of the hematoma will go away. This takes from 1 to 4 weeks, depending on the size of the hematoma. The skin over the hematoma may turn bluish then brown and yellow as the blood is dissolved and absorbed. Usually, this only takes a couple of weeks but can last months.
Q.What helps a hematoma heal faster?
Put ice on your bruise right after you get injured. That can reduce the size of your bruise, which may allow it to heal faster. The cold temperature from an ice pack makes the blood in that area flow more slowly. It may reduce the amount of blood that leaks out of your vessels.
Q.How many days should you ice a hematoma?
Put ice or a cold pack on the area for 10 to 20 minutes at a time. Prop up the bruised area on a pillow when you ice it or anytime you sit or lie down during the next 3 days. Try to keep it above the level of your heart. This will help reduce swelling.
Q.What happens if a hematoma bursts?
Hematomas can be become quite large and collect enough blood to cause low blood pressure and shock. Very large hematomas can displace organs, cause organ dysfunction, and may require surgery to repair damage.
Q.How long it takes to recover from surgery?
It varies from person to person. Some people may feel better within a few weeks or months, while others may never make a full recovery even after many years.
Q.Will a hematoma lump go away?
Sometimes, hematomas can go away on their own. If you have a muscular hematoma, doctors generally recommend the RICE method — rest, ice, compression, and elevation to reduce the swelling and give it time to heal.
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