Pain, swelling, ...
The signs of ankle sprain
and a fracture
can be very similar, and if the sprain (tearing of muscle fibers and tendon fibers) is bad enough, the treatment may be the same, and a bad sprain could take even longer to heal.
If ia non-displaced fracture (inside ankle=medial malleolus, outside = lateral, posterior=heel), there will be swelling, pain, heat, very tender. Ice, elevate, immobilize-ortho.