A blood gerean that develops inside one of your veins or arteries is referred to as a thrombus. A thrombus may also form in her heart.

A thrombus or embolus have the right to partly or completely block the flow of blood in a blood vessel.

You are watching: A foreign object, such as a blood clot that is circulating in the blood is called:

A blockage in one artery might prevent oxygen from getting to the organization in the area. This is referred to as ischemia. If ischemia is not treated promptly, it deserve to lead come tissue damage or death.A blockage in the vein will certainly often reason fluid buildup and also swelling.


Situations in which a blood gerean is more likely to kind in veins include:

Being on permanent bed restSitting for long periods, such together in a airplane or carDuring and after pregnancyTaking birth regulate pills or estrogen hormone (especially in women that smoke)Long-term use of one intravenous catheter after ~ surgery

Blood clots are also more likely to kind after one injury. Civilization with cancer, obesity, and liver or kidney disease are additionally prone come blood clots.

Smoking additionally increases the hazard of developing blood clots.

Conditions that space passed under through families (inherited) might make you more likely to type abnormal blood clots. Inherited problems that influence clotting are:

Factor V Leiden mutationProthrombin G20210A mutation

Other rarely conditions, such together protein C, protein S, and antithrombin III deficiencies.

A blood clot may block one artery or vein in the heart, affect the:

Heart (angina or a heart attack)Neck or brain (stroke)

Alternative Names

Clot; Emboli; Thrombi; Thromboembolus; Hypercoagulable state

Patient Instructions



Anderson JA, Hogg KE, Weitz JI. Hypercoagulable states. In: Hoffman R, Benz EJ, Silberstein LE, et al, eds. Hematology: simple Principles and also Practice. 7th ed. Philadelphia, PA: Elsevier; 2018:chap 140.

Schafer AI. Technique to the patient with bleeding and also thrombosis: hypercoagulable states. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 162.

Updated by: Todd Gersten, MD, Hematology/Oncology, Florida Cancer specialists & research Institute, Wellington, FL. Review provided by VeriMed health care Network. Also reviewed through David Zieve, MD, MHA, medical Director, Brenda Conaway, Editorial Director, and also the A.D.A.M. Editorial team.

See more: What Was The Impact Of Grantism On American Politics ? Grantism For Kids: Scandals And Corruption ***

Blood ClotsRead an ext
NIH ptcouncil.net MagazineRead much more
Health subject A-ZRead an ext

A.D.A.M., Inc. Is accredited through URAC, for health Content Provider (www.urac.org). URAC"s accreditation program is an independent audit to verify the A.D.A.M. Adheres to rigorous criter of quality and accountability. A.D.A.M. Is amongst the an initial to accomplish this important difference for online wellness information and services. Learn much more about A.D.A.M."s editorial policy editorial procedure and privacy policy. A.D.A.M. Is likewise a establishing member the Hi-Ethics. This site follows the HONcode standard for trustworthy health and wellness information: verify here.


U.S. Nationwide Library the Medicine8600 Rockville Pike, Bethesda, MD 20894U.S. Department of Health and also Human ServicesNational institutes of health and wellness
page last updated: 08 October 2021