Testosterone replacement therapy (TRT) may not be suitable for everyone. In some cases, additional testing or alternative treatments may be needed before starting treatment.
When TRT is not recommended
TRT is generally not advised if:
You are under 18
You were born female
Your blood is too thick (a test called haematocrit >54%)
You have severe heart failure (very serious symptoms even at rest)
You have (or have had) prostate cancer or male breast cancer
A clinician has found a new lump or abnormality in the prostate that has not been checked yet
You have very troublesome urinary symptoms that have not been properly assessed or treated
You currently inject non-prescribed drugs
You have (or have had) certain brain tumours (especially gliomas)
You have previously had gender-affirming hormone treatment (this requires specialist review with expertise in transgender healthcare which Numan does not currently provide)
You are actively trying for a baby in the next 6–12 months
In this situation, testosterone is usually not suitable because it can reduce sperm production. Other options may be safer.
Your doctor will review your blood test results and medical history carefully to ensure TRT is safe for you and consider other treatment options if deemed more appropriate.
Special considerations for certain occupations
Some patients, such as those in the armed forces or pilots, may require approval from their medical officer before starting TRT due to job-specific health and safety regulations.
Additional testing or treatment
If your tests show low testosterone but other health concerns are present, your doctor may recommend addressing those issues with your GP or specialist first.
Depending on your test results and personal goals, further tests may include:
MRI scans
Prostate exams
Fertility tests
Need more help? If you have any questions on eligibility please contact our Patient Support Managers who can consult with the clinical team.