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

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

You are watching: Oxygen deficiency in surrounding tissues is called

A blockage in one artery might prevent oxygen from reaching the tissues in the area. This is referred to as ischemia. If ischemia is no treated promptly, it deserve to lead come tissue damage or death.A blockage in the vein will often cause fluid buildup and also swelling.


Situations in i m sorry a blood clot is more likely to type in veins include:

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

Blood clots room also an ext likely to kind after an injury. Human being with cancer, obesity, and also liver or kidney disease are also prone come blood clots.

Smoking also increases the danger of forming blood clots.

Conditions that space passed under through family members (inherited) might make you much more likely to kind abnormal blood clots. Inherited conditions that affect clotting are:

Factor V Leiden mutationProthrombin G20210A mutation

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

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

Heart (angina or a heart attack)Neck or mind (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: straightforward Principles and also Practice. 7th ed. Philadelphia, PA: Elsevier; 2018:chap 140.

Schafer AI. Strategy to the patient through bleeding and 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 & study Institute, Wellington, FL. Review listed by VeriMed health care Network. Also reviewed by David Zieve, MD, MHA, clinical Director, Brenda Conaway, Editorial Director, and also the A.D.A.M. Editorial team.

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