(Original post by rizisap)
Shin splints are caused by (iirc) too much stress on the connective tissue (ie, muscles and ligaments). Essentially, your muscles can handle the load you're exerting on them, but your connective tissue cant. Connective tissue recoveres in a similar way to muscle, but takes longer. If they're stressed repeaptedly (ie, as in football) the connective tissue can start to recover incorrectly. As a result, the next time its stressed, more damage is done.
Theres good news and bad news. The good news is that it doesnt take massive amounts of time for your connective tissue to repair itself fully completely (6 weeks should do it). After this, take it easy (1 game every 3 days to start) and build up slowly.
The bad news, you MUST let it recover. Otherwise, the damage gets worse and worse, and you can end up with a stress fracture, which will keep you out for months (and from which you might not recover 100%)