My Dad Has Arthritis In His Joint - He Was

My Dad has arthritis in his joint - he was taken to the doctor today and they mentioned TB as a possible diagnosis - he has a really high white blood count - but I really don't know too much more about this- he had a lot of fluid which was drained from the joint- no results yet. This has steadily gotten worse over the last 5 years or so - he is in pain but it doesn;t stop him from exercising and bowling...