Thrombosis in the Veins and Arteries

Thrombosis refers to the formation of a blood clot in a blood vessel. The blood clot either completely or partially blocks the flow of blood through the blood vessel. The blood clot can be in a vein or an artery. The symptoms that occur with a blood clot depend on:

  • Where the clot occurs

  • The size of the clot

  • Whether the clot breaks off and travels to another part of the body

When a clot breaks off and travels, this is known as embolization. For example, a blood clot in the leg can break off and travel to the lungs (pulmonary embolism) or travel to the brain (embolic stroke).

Clots in the veins mainly occur in the arms and legs, but they can also occur in the veins of internal organs such as the liver, spleen, or intestines. The most common types of clots in the veins are deep vein thrombosis and pulmonary embolism. Clots in the arteries can also affect a variety of organs including the brain (stroke), heart (myocardial infarction), or intestines (abdominal angina).

Learn more about clotting disorder influencers