what causes your legs to swell from the knees down?
<answer> An abnormal accumulation of fluid in the tissues of the lower extremity,the side effect of a drug. <context> Nonemergency problems related to leg swelling still need prompt care. Leg swelling that is the side effect of a drug can look just like leg swelling caused by a kidney disorder. Make an appointment as soon as possible so that your doctor can diagnose the underlying problem.