Dear doctor, recently I had taken (Kidney) Function Test, Liver Function Test, Testosterone and Estrogen test all the test result are within normal range only Total Bilirubin is 34 UMOL/L. My question are is there any other blood test I should get to rule out the cause of gynecomastia? I have search some of the info in internet but I'm sure they are correct that's why I trust this site more than other. :) Many thanks and your help is very very much appreciated.