A blood gerean that develops inside one of her veins or arteries is dubbed a thrombus. A thrombus might also kind in your heart.

A thrombus or embolus can partly or completely block the flow of blood in a blood vessel.

You are watching: A blood clot attached to the interior wall of a vein or artery

A blockage in an artery might prevent oxygen from getting to the organization in the area. This is referred to as ischemia. If ischemia is no treated promptly, it deserve to lead to tissue damage or death.A blockage in the vein will often reason fluid buildup and swelling.


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

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

Blood clots room also much more likely to form after one injury. People with cancer, obesity, and also liver or kidney condition are likewise prone to blood clots.

Smoking likewise increases the threat of developing blood clots.

Conditions that are passed under through households (inherited) may make you an ext likely to kind abnormal blood clots. Inherited problems that influence clotting are:

Factor V Leiden mutationProthrombin G20210A mutation

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

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

Heart (angina or a love 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 v 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 professionals & research Institute, Wellington, FL. Review provided by VeriMed healthcare Network. Likewise reviewed by David Zieve, MD, MHA, medical Director, Brenda Conaway, Editorial Director, and also the A.D.A.M. Editorial team.

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web page last updated: 01 September 2021