Rolling car ran over foot. at er for fourth time in week; doc thinks the swelling that was in one leg is now in both.due to infection. what is up?

Gait abnormality: Your limping due 2 pain in 1 foot is likely causing over use injury 2 the other foot and leg. Walking without limping (like in the pool - in water up to your chest) is the key 2 recovery. You are at risk for DVT (blood clot) if the pain from the original injury keeps you from moving long enough. Assuming no fracture or clot, ice compression & regular elevation & regular toe and foot wiggling :).

Many possibilities: Some causes of swelling of the ankles can include systemic problems such as hypertension, and problems with the kidneys and localized issues such as arthritis, infection, lymphatic obstruction, blood clots, varicose veins, trauma (fracture, sprain, tendonitis) and side effects to medication. Have it evaluated by a professional and get the appropriate treatment.

More info needed: Would help knowing why you went each time and what you were told. Certainly, something doesn't sound right. Did you fracture anything? Do you have pain? An open wound?