Ruling out the above conditions through a detailed series of questions and tests, we would then measure your testosterone levels in the morning between 7am and 11am, or within 3 hours of waking.
As a guide, if total testosterone levels are normal (greater than 12), you would then, not be diagnosed with (TDS). If the values are borderline below 12, a repeat testosterone level can be performed for confirmation. However, this numbers serve as a guide and should still be explored as a whole with our doctors given your clinical contextand symptoms experienced. If your total testosterone values fall below 12, further comprehensive tests would also be undertaken
These include FSH, TSH, LH, Prolactin– (hormones produced by the pituitary gland), a complete blood count, SHBG, cFT or cBAT, Ferritin (iron capacity in the blood), PSA (prostate specific antigen) for prostate disease.
Depending on the results of the comprehensive tests, one would then be given a diagnosis of primary hypogonadism or secondary hypogonadism
- Low testosterone + High LH/FSH
- More likely associated with decrease in sperm production than testosterone production
- More likely associated with gynaecomastia (breast development)
- Due to congenital abnormalities, acquired disease OR idiopathic (unknown cause)
- Low testosterone + normal LH/FSH