After you sprain your ankle, your foot may swell for a variety of reasons. For one thing, the ligaments that give stability on the sides of your ankle are damaged when you twist it. As a result of the torn ligaments in your ankle, your foot will swell and bruise.
A broken bone in your foot is another explanation. A strong tendon joins to the side of your foot and goes along the outside of your ankle. When you sprain your ankle, this tendon is suddenly strained, pulling on the base of the fifth metatarsal bone and causing the bone to break. Jones Fracture is the medical term for a broken foot bone. It’s just another reason why you should see the foot doctor at DeNiel Foot and Ankle Center right away if you’ve sprained your ankle. Foot surgery will be necessary to fix a Jones fracture if it is not addressed soon.