What is normal tt levels ib a 45 male, how do you test why one had low tt? Vip

Tt= testosterone? If you're asking what is a normal testosterone for a 45 year old male it's dependent on the lab but somewhere between 300-1000. You need to know the free testosterone also and it should be checked in the morning. Don't go on replacement without knowing the downstream effects. For more: www.Peedoc.Com @thepeedoc.