How to check for lower extremity venous thrombosis? Is it done by color Doppler ultrasound?

Checking for lower extremity venous thrombosis usually requires the use of color Doppler ultrasonography (i.e., venous ultrasound), which is currently the most commonly used and accurate detection method in clinical practice. Color Doppler ultrasonography can clearly show whether there is a thrombus in the blood vessel and whether blood flow is blocked, which plays an important role in diagnosing and evaluating the condition.

Lower extremity venous thrombosis refers to abnormal coagulation of blood in the deep veins of the lower extremities, resulting in blood flow obstruction. Common causes include prolonged sitting or lying, long-term travel, recovery from surgery, or obesity, all of which increase the risk of venous thrombosis. If you suffer from this disease, you may experience symptoms such as calf swelling, pain, and fever, but sometimes there may be no symptoms at all.

During the color Doppler ultrasound examination, the doctor will use a probe to do a non-invasive scan on the surface of your lower limbs. If irregular echoes or abnormal blood flow are found in the blood vessels, it may indicate the presence of blood clots. In addition, other auxiliary examinations can be performed according to the needs of the condition, such as the D-dimer blood test, which is a blood marker test that can help evaluate whether there is blood clot formation in the body, but the accuracy is not as high as color Doppler ultrasound.

If you are at risk for thrombosis but your symptoms are mild or undiagnosed, you can reduce your risk by exercising properly, avoiding long periods of sitting, or wearing professional elastic stockings. If you have obvious symptoms or highly suspect thrombosis, please see a doctor as soon as possible. The doctor will make a comprehensive judgment on whether color Doppler ultrasound or other further examinations are needed. Early diagnosis and treatment can effectively prevent the occurrence of serious complications such as pulmonary embolism.