Hi Martin,<br> Welcome to the forum. <br> <br> The normal range for total testosterone is 300 - 1000 ng/dl. <br> <br> If the testosterone level determined through a blood test is found to be extremely low and your doctor feels that developing an exact clinical diagnosis is important based on the physical exam and patient history, blood tests for FSH, LH and/or prolactin may be ordered. Results of these tests can provide a more complete picture of a man's hormonal status. <br> <br> You might want to read the complete article about "Diagnosing Andropause" here:<br> <br> <a href="http://www.seekwellness.com/andropause/testosterone.htm#diagnosing" target="_blank">http://www.seekwellness.com/andropause/testosterone.htm#diagnosing</a><br> <br> This should help you discuss your options with your doctor.<br> <br>