One possible cause is chronic venous insufficiency, where the valves inside the leg veins do not work properly. This can lead to blood pooling in the lower legs, causing swelling, visible veins, heaviness, or skin discoloration.
Over time, pressure from trapped blood can cause the skin around the ankles to become darker or reddish-brown. Some people may also experience itching, dryness, tenderness, or swelling that gets worse after standing for long periods.
These changes do not always mean something serious, but persistent swelling, pain, skin changes, or worsening discoloration should be checked by a healthcare professional. Early evaluation can help identify circulation problems before they become more severe.
