What does thrombosed mean?

Thrombosed means that a blood clot has formed in the lumen (inside) of a blood vessel. This can partially or completely obstruct the flow of blood through the affected vessel. The formation of a blood clot is commonly referred to as thrombosis, and the result of a blood clot forming in a blood vessel can be serious and even life-threatening if not treated quickly and appropriately.

Factors that increase the risk of blood clots include certain genetic conditions, age (specifically older adults), smoking, certain medical conditions (e.g., certain heart diseases, cancer, long periods of immobility, and pregnancy), and certain medications.