In reply to Timmd:
On that note, I've had a friend who injured their wrist. Went to a private physio, and was told "oh yeah, you can keep climbing on it - don't worry". Well he did, and it didn't get better and it has become 6 months of injury, still feeling pain (poor guy) from light wrist loading - whether or not it will heal after so long is a good question.
I suspect that if you repeatedly aggravate a tendon injury, it will not heal as well as if you followed an optimal healing plan (the ends of the wound that need to meet, after repeated damage, would mesh less completely - bit like trying to re-attach a limb after the stub has been healing for a few months, it won't mesh) - and that's what happened.