Blood clots are gel-like clumps of blood. When they form in response to a cut or other injury, they stop the bleeding by plugging the injured blood vessel. These blood clots help the body heal.
But some blood clots form inside the veins without a good reason. They don't dissolve naturally. These clots may require medical attention, especially if they are in the legs, lungs or brain. A number of conditions can cause this type of blood clot.
July 19, 2023
- Blood clots. American Society of Hematology. https://www.hematology.org/education/patients/blood-clots. Accessed April 23, 2023.
- Your guide to preventing and treating blood clots. Agency for Healthcare Research and Quality. https://www.ahrq.gov/patients-consumers/prevention/disease/bloodclots.html. Accessed April 23, 2023.
- Loscalzo J, et al., eds. Bleeding and thrombosis. In: Harrison's Principles of Internal Medicine. 21st ed. McGraw Hill; 2022. https://accessmedicine.mhmedical.com. Accessed April 23, 2023.
- Understand your risk for excessive blood clotting. American Heart Association. https://www.heart.org/en/health-topics/venous-thromboembolism/understand-your-risk-for-excessive-blood-clotting. Accessed April 23, 2023.
- Blood clotting disorders: Causes. National Heart, Lung, and Blood Institute. https://www.nhlbi.nih.gov/health/clotting-disorders/causes. Accessed April 23, 2023.
- What is venous thromboembolism? Centers for Disease Control and Prevention. https://www.cdc.gov/ncbddd/dvt/facts.html. Accessed April 23, 2023.
- Loscalzo J, et al., eds. Arterial and venous thrombosis. In: Harrison's Principles of Internal Medicine. 21st ed. McGraw Hill; 2022. https://accessmedicine.mhmedical.com. Accessed April 23, 2023.
- Caforio ALP. COVID-19: Cardiac manifestations in adults. https://www.uptodate.com/contents/search. Accessed April 23, 2023.