I've been using TRT for years, originally due to low libido. I've found that even though my total testosterone was brought within the normal range (more on that later) I never really found any improvement in libido. I do know that if I'm not on TRT or on a too low dosage I'm not able to have an erection, so that tells me that the T does have effect. My endocrinologist and I butt heads regularly on how much of a dose I should be on. She is a "numbers" doc, if its in the standard range (anywhere) then job done and the dosage is correct. I've been telling her for years that I think I need to be on a higher dose because I don't really see much improvement in my libido. I'm of the belief that doctors should be going by how the patient feels not if they are in the "normal" range. I'm sure that I need to be followed by a doc that has more experience working with men that have low T but in the mean time I've been trying to go through my blood tests in hopes of finding something that will convince my doc that more needs to be done.
The T results (Quest) show that my total is right in the middle of the normal range (649). SHBG is in the low third and so is albumin. However my free T is low (103.8 pg/mL out of 46.0-224 range) and bioavailable is 190.9 ng/dL out of 110.0-575 range). I'm wondering if this has anything to do with low libido? Seems like free and bioavailable should be higher and what is taking up the ample amount of T? Estradiol is 30, which according to what I've read is a little on the high side (anything > 30). Are there any other tests that I can do that would give me more clues as to what is going on with my low libido? btw, I'm a healthy 65 year old with no health problems and take no medication. I'm not overweight, no heart issues, no diabetes, exercise regularly, eat healthy and take supplements.
Thanks in advance. Bob
The T results (Quest) show that my total is right in the middle of the normal range (649). SHBG is in the low third and so is albumin. However my free T is low (103.8 pg/mL out of 46.0-224 range) and bioavailable is 190.9 ng/dL out of 110.0-575 range). I'm wondering if this has anything to do with low libido? Seems like free and bioavailable should be higher and what is taking up the ample amount of T? Estradiol is 30, which according to what I've read is a little on the high side (anything > 30). Are there any other tests that I can do that would give me more clues as to what is going on with my low libido? btw, I'm a healthy 65 year old with no health problems and take no medication. I'm not overweight, no heart issues, no diabetes, exercise regularly, eat healthy and take supplements.
Thanks in advance. Bob
Testosterone, total, by LC/MS | 649 ng/dL | 250 - 1,100 ng/dL |
TESTOSTERONE, FREE | 103.8 pg/mL | 46.0 - 224.0 pg/mL |
Testosterone, Bioavailable | 190.9 ng/dL | 110.0 - 575.0 ng/dL |
SEX HORMONE BINDING GLOBULIN | 30 nmol/L | 22 - 77 nmol/L |
Albumin | 4.0 g/dL | 3.6 - 5.1 g/dL |
Estradiol | 30 pg/mL | < OR = 39 pg/mL |