Sorry to hear about your problem. You probably have a lot of tissue fluid and blood which would have gravitated down your leg to the foot and hence the swelling. It is also possible that the skin over the shin bruise is infected, following the injury, causing swelling down the leg and foot. Either way, you need to keep your leg elevated on a pillow,ice the swollen part, avoid walking, and you need an antibiotic and perhaps an x ray to rule out a hairline fracture on the shin. Hope this helps Do let me know if you have any more queries on this. Dr Purushottam Reddy Padala MS(Ortho) FRCS Consultant orthopaedic Foot and ankle surgeon Happy Feet Foot clinics. Hyderabad. India