what could cause ankles to swell?
<answer> Excessive standing or walking <context> What causes swollen ankles? Excessive standing or walking can cause swollen ankles, but so can more serious conditions if ankles stay swollen. For examples, pregnancy commonly causes swollen ankles. But if it is sudden and the swelling is excessive, it could be a sign of preeclampsia. Also, if you have injured your foot or ankle, swelling can occur. Lymphedema is another cause of swollen ankles; this condition blocks the flow of lymphatic fluids, causing them to become trapped in certain areas of the body.