What is internal bleeding?
Internal bleeding occurs when damage to an artery or vein allows blood to escape the circulatory system and collect inside the body. The amount of bleeding depends upon the amount of damage to an organ and the blood vessels that supply it, as well as the body's ability to repair breaks in the walls of the blood vessels. The repair mechanisms available include both the blood clotting system and the ability of blood vessels to go into spasm to decrease blood flow to an injured area.
Patients who take anti-clotting medication such as warfarin (Coumadin), clopidogrel (Plavix), heparin, or aspirin are more prone to bleeding than people who do not take these medications. These individuals may experience significant bleeding even with relatively minor injury or illness, and the risk of bleeding needs to be balanced against the benefits of taking the medication.
Some people have genetic or inborn errors of the blood clotting system. Minor injuries may cause major bleeding in these cases. Hemophilia and von Willebrand disease are two examples.
What are the Causes of internal bleeding
Cancer
Bleeding is common in many types of cancer. Sometimes the bleeding is obvious, but more often, cancer-related bleeding is internal, with perhaps some external manifestations. For example, blood in the stool can indicate cancer of the colon or rectum, while vaginal bleeding could suggest cancer of the cervix, uterus, or ovary. Blood in the urine may signify kidney or bladder cancer. One sign of stomach cancer is vomiting blood; esophageal cancer can also produce vomiting or spitting up blood.
Cirrhosis
In this disease, which is most commonly caused by alcohol abuse, scar tissue forms in the liver and obstructs the flow of blood. In the advanced stages of cirrhosis, there may be heavy bleeding into the esophagus.
Colon polyps
Colon polyps are small, grape-like growths that form clusters inside the large intestine. Some are hereditary (familial polyposis) and have a high probability for becoming cancerous. More often, they are harmless; both types, however, are a common cause of hidden intestinal bleeding.
Diverticulosis
In diverticulosis, small outpouches form along weakened segments of the colon wall. Sometimes these pouches become impacted with fecal material, causing inflammation. In severe cases, one or more of these outpouches may rupture, causing bleeding and spilling the colon contents into the abdominal cavity. This can lead to life-threatening peritonitis.
Gastric disorders
Gastrointestinal bleeding may be caused by a variety of disorders, as well as by certain medications. Aspirin, for example, can be the culprit if taken often and in high doses. Gastrointestinal bleeding ranges from mild to severe, and in conditions such as a peptic ulcer, it can cause massive hemorrhage and death if treatment is delayed. If massive bleeding occurs, other symptoms may include pain, heavy perspiration, vomiting blood, bloody stools, and shock.
Hemophilia
This is an inborn defect of blood coagulation. It affects only males, although women carry the causative gene. Children who have it often bleed into the joints, resulting in joint pain, swelling and deformity. Even a trivial injury can result in severe internal and external bleeding.
Leukemia
Some forms of leukemia can cause internal bleeding. Other symptoms may include high fever, joint pain, fatigue, pallor, and abnormal blood counts.
Marfan's syndrome
This inherited disorder can cause weakness of the aorta, the largest artery that carries blood from the heart for distribution to all parts of the body. Severe, internal bleeding can occur if an aneurysm develops and ruptures.
Miscarriage and menstrual disorders
Severe vaginal bleeding may occur during a miscarriage. It also may be a sign of approaching menopause or failure to ovulate. Vaginal bleeding that is unrelated to pregnancy or menstruation is a common sign of cancer.
Vascular disorders
These are disorders of the blood vessels in which internal bleeding is a likely symptom. Purpura, in which blood vessels are fragile and the person bruises easily, is one of the most common of these disorders. There may also be fever and joint pain
How is internal bleeding treated?
The initial treatment plan of any patient with internal bleeding begins with assessing the patient's stability and making certain the ABCs are well maintained. This includes making certain the patient's:
- Airway is open,
- that the patient is Breathing, and
- that there is adequate Circulation, meaning good pulse and blood pressure.
What are the complications of internal bleeding?
Depending upon where it occurs, if not recognized, internal bleeding may cause organ failure, shock, and death. For example:
- If there is uncontrolled bleeding in the chest or abdomen, the body may lose enough circulating red blood cells to compromise oxygen delivery to cells in the body. This situation is called shock. If the bleeding is not stopped and if fluid resuscitation and perhaps blood transfusion are not provided, the patient may die.
- Internal bleeding in the brain may cause minimal damage, but if there is enough to cause increased pressure or if the bleeding increases, enough brain tissue may be damaged to cause stroke-like symptoms, coma, and death.
How can we prevent or take precautions?
Internal bleeding covers many organ systems and situations. Disease and injury prevention is the basis of maintaining a healthy lifestyle.
Key to prevention include preventing heart attack and stroke by controlling high blood pressure, diabetes and high cholesterol.
Injury prevention includes wearing appropriate safety equipment for the activity involved and avoiding risky behaviors like drinking and driving.
Preventing alcohol-related diseases can help prevent a significant cause of internal bleeding.
Individuals taking medication that predispose them to internal (and external) bleeding should take extra precautions to avoid any trauma; moreover, they should continue to get routine blood tests (INR, PT, CBC's) to see if they are appropriately medicated and assure they are not bleeding internally
Internal Bleeding At A Glance
- Internal bleeding may occur in many areas of the body and may cause significant local pain. If enough bleeding occurs, signs of shock may be apparent.
- Bleeding is a recognized complication of anti-coagulation medications such as aspirin, clopidogrel (Plavix), warfarin (Warfarin), and heparin. The benefits of these medications need to be balanced against the risk of bleeding.
- Bleeding is never normal in pregnancy.
- If internal bleeding is suspected, it is important to seek medical care
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