What Causes Deep Vein Thrombosis?
Blood clots can form in your body’s deep veins if: • Damage occurs to a vein’s inner lining. This damage may result from injuries caused by physical, chemical, or biological factors. Such factors include surgery, serious injury, inflammation, and an immune response. • Blood flow is sluggish or slow. Lack of motion can cause sluggish or slow blood flow. This may occur after surgery, if you’re ill and in bed for a long time, or if you’re traveling for a long time. • Your blood is thicker or more likely to clot than normal. Certain inherited conditions (such as factor V Leiden) increase blood’s tendency to clot. This also is true of treatment with hormone replacement therapy or birth control pills.
