What causes venous hypertension?

Venous hypertension occurs when there is increased pressure in the venous system, often due to conditions that impair blood flow return to the heart. Common causes include venous valve dysfunction, such as in chronic venous insufficiency, deep vein thrombosis, or prolonged periods of standing or sitting. Other contributing factors can include obesity, pregnancy, and certain medical conditions that affect vascular health. This elevated pressure can lead to symptoms like swelling, pain, and skin changes in affected areas.