Everything else is fine, and his CBC and CMP blood
test results are always normal.
Liver tests are always normal. I read that
liver disease usually shows up in the blood test results first, then when it becomes more advanced, it starts showing up in the urine. His results are sort of backwards. Blood tests fine, yet there's always bilirubin in the urine. And like I said this has been going on for 10 years (he is 16 now). No other significant symptoms that he's told me about.