Getting white colored urine discharge and getting fainted. How to diagnose the problem?

Sir, Good Evening. my brother having pecular problem. He 40 yrs old in 1999 he started getting white colored urine discharge some times. One day early morning around 3am he fallen down and became un contious after sometime himself became contious. Used some medicines where as there is no good result condition remained the white urine discharge became regular. in 2009 he was passing urine in the early morning around 3am and fallen down after some time he became contious. consulted doctors and taken treatment for few months. But white colored thick curd like urine getting discharged. Again in 2013 last month he again fallen down around 3am while passing urine and was un contious after some time he became contious. This time he had severed wounds due to sudden fall. Some stiches on face, lips nose. We are not able understand what may be disease to which doctor need to be consulted. Pl advise based on above history.