"A layperson's guide to a debilitating condition." Thrombosis is the formation of a solid blood clot in an arterial or venous vessel where it can interfere with normal blood flow. About 1 in 20 suffers from vein clots or lung clots at some point, and about half of those suffering from thrombosis have other illnesses such as cancer or develop the clot while recovering from surgery or a serious accident. While most episodes of blood clotting are not dangerous, some can be serious and even fatal. Thrombosis is a straightforward, helpful guide for non-medical readers that explains important issues regarding this condition: Causes of thrombosis Prevention of blood clotting Diagnosis and treatment New and current drug therapies The latest surgical procedures Day-to-day management. Thrombosis is an invaluable resource for those suffering from the condition and for their families.