Phlebolith: A long-lasting thrombus that has not been sufficiently mechanized can occur in veins with large deposits of calcium salts called phleboliths. Generally speaking, phleboliths are formed after calcification of venous thrombosis, mostly in patients with varicose veins, which are the product of the development of varicose veins over a certain period of time; they are also seen in patients with hemangiomas. In case of severe obstruction of blood vessels, it causes clinical symptoms, such as: edema, ulcers, pain, etc. Treatment: Treatment of the etiology. Registration: Vascular surgery, interventional department.