Thrombosis occurs when clots block blood vessels.
Venous thrombosis may be the result of the following:
Varicose veins occur when blood pools and then clots in the legs. Clots in the legs may break loose and travel to the lungs. This can cause trouble breathing, pain, and in extreme cases, death.
Arterial thrombosis may be the result of arteriosclerosis. This is the hardening of the arteries where fatty or calcium deposits cause the arterial walls to thicken. This can lead to plaque instability and risk for rupture followed by thrombus.
When arterial thrombosis occurs in the coronary arteries (arteries that supply blood to the heart muscle), it can lead to a heart attack. When arterial thrombosis occurs in a blood vessel in the brain, it can lead to a stroke.
Risk factors for arterial thrombosis may include:
The following are the most common symptoms of thrombosis. However, each person may experience symptoms differently. Symptoms may include:
The symptoms of thrombosis may look like other blood disorders or medical problems. Always consult your health care provider for a diagnosis.
In addition to a complete medical history and physical exam, other tests may include ultrasounds of the arteries and veins and blood tests including those to test how well blood clots.
Dye injection with angiography and catheterization may also be used, as well as MRI/MRA and CT. The diagnostic procedure advised depends on the type of thrombus and the location.
Treatment may include:
Other treatments may be advised by your health care provider.
Tips to help you get the most from a visit to your health care provider: