Q:

What happens if blood is too thin?

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Quick Answer

People whose blood is too thin are prone to excessive bleeding that is potentially dangerous. Those with thin blood lack sufficient platelets, which are cell fragments that help the blood form clots. Health Guidance reports these people tend to experience nose bleeds, bleeding gums, frequent bruising all over their bodies and even blood in their urine.

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What happens if blood is too thin?
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Full Answer

The condition in which a person has thin blood owing to a lack of platelets is known as thrombocytopenia, according to Health Guidance. Symptoms include fatigue, general weakness, small bruises all along the body and bleeding after brushing or flossing teeth. The primary danger to people with the condition is bleeding to death following an injury or developing internal bleeding and not realizing it until it has progressed significantly.

The Mayo Clinic reports thrombocytopenia also manifests in women through prolonged, extremely heavy menstrual periods. In men and women, it may manifest through excessive bleeding following surgery or dental work and profuse bleeding after sustaining cuts.

Health Guidance states that the condition is caused by a number of factors, including pregnancy and certain medications, including interferon H2 blockers and chemotherapy drugs. Leukemia and several immune diseases can also lead to thrombocytopenia. Treatment usually involves addressing the underlying cause of the condition. In severe cases, blood transfusions may be necessary.

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