whats wrong with my dog??

how can you tell if a dog has a dislocated shoulder and what usually is the cause of it? also his urine smells awfully strong when he pees, what could be wrong?  he is in a lot of pain around his shoulders and that is why I suspect a dislocated shoulder.

[have 2 kids]

No one on the internet can tell you if your dog has a dislocated shoulder.   If he does it could
be caused by a fall or being hit by a car.       Strong smelling urine could be an indicator of a bladder or kidney infection.   Your pet should be seen for both of these conditions.