Hi, my name is Lee. My fiancé live in USA he works 8 hours a day standing all day at work been on that job for last 9 years. He recently went for body massage while he was getting massage his knees were hurting he is 45 years old what you think it's. Ist dangerous how he treat the pain does ge needs to go to see specialist if yes what specialist he can go to? Please help I love him so much can see him in pain.