Causes of pitting bilateral pedal oedema?

Pitting edema. Bilateral can either be caused by systemic disease or localized causes. Systemically cardiac, liver or kidneys problems can cause edema. Locally . Tight clothing, thrombophlebitis or varicose veins can cause edema.
Multiple Factors. Venous insufficiency in the legs, clots in the veins of both legs, congestive heart failure. Kidney disease & liver disease are conditions to rule out as causes for bilateral pitting edema. It could be an urgent situation so please don't wait even a day to have an examination by a doctor and the necessary testing. All the best.