Thrombosis in the veins can be detected through a number of tests and procedures. The most common way to detect thrombosis is through a physical examination. A doctor may check the affected area for tenderness, swelling, warmth, and discoloration. If the doctor suspects thrombosis, they may order additional tests, such as an ultrasound or a venography.
An ultrasound uses sound waves to create an image of the veins, allowing the doctor to see any blockages or clots. A venography is a type of x-ray that allows the doctor to see the veins more clearly.
In addition to physical examinations and imaging tests, a doctor may also order blood tests to check for markers of thrombosis. Blood tests can detect substances in the blood that indicate the presence of a clot, such as D-dimer, fibrinogen, and other proteins.
If thrombosis is detected, a doctor may recommend medications, such as anticoagulants, to prevent further clotting. Surgery may also be necessary to remove a clot or to open a blocked vein.