Thelansis

 Deep Venous Thrombosis (DVT) is a pathological condition characterized by the obstruction of veins due to hindered venous reflux. It predominantly affects the lower limb venous system, originating from clot formation in a deep calf vein and extending proximally. DVT and venous thromboembolism (VTE) significantly contribute to cardiovascular disease mortality, ranking third after heart attacks and strokes. Various risk factors contribute to the development of DVT, including reduced blood flow, increased venous pressure, mechanical injury to the vein, and elevated blood viscosity. Established causes of DVT and VTE include obesity, pregnancy, advanced age (above 60), surgery, critical care admission, dehydration, and cancer. According to Virchow's triad, the main pathophysiological mechanisms involved in DVT are damage to the vessel wall, blood flow turbulence, and hypercoagulability. Deep veins, as categorized by the Clinical-Etiology-Anatomy-Pathophysiology (CEAP) classification, i