Which is worse: an ankle sprain or break?

Depends: Often times a sprain can take longer to heal than a fracture. A sprain can have more problems after time than a fracture that is set and healed

A SPRAIN: A sprain is worse. Why? Because people don't take the injury seriously enough, undertreat it, then have problems for months.

It depends...: Some sprains are severe, involve multiple ligaments and create joint instability, possibly requiring surgery. Some are very mild and only involve rest. The same variability occurs with fractures. Some fractures are unstable and require hardware fixation. Some fractures only require brief immobilization. The key is an accurate diagnosis, very specific treatment advice and often rehabilitation.