Other causes of ankle edema are gout,ankle arthritis,impairment of the
blood flow to the ankles due to some
blood clot,
varicose veins etc.Also remember that eating a poor diet high in salt and carbohydrates , abusing laxatives, diuretics, taking birth control or hormone replacement therapy pills, pregnancy and PMS,kidney or liver pathologies, sodium retention and neuromuscular disorders can also cause such ankle edema.