TRT in the UK: NHS vs Private Costs, Blood Tests and Monitoring

Testosterone replacement therapy, usually shortened to TRT, is available in the UK through both the NHS and private clinics.

The treatment itself can look similar whichever route you use — testosterone may be prescribed as a gel or injection — but the experience, waiting times, costs and monitoring arrangements can be very different.

Through the NHS, treatment is usually available when symptoms are consistent with testosterone deficiency and blood tests confirm genuinely low testosterone. You may initially see your GP and then be referred to endocrinology or another specialist service.

Private treatment is generally faster to access, but you pay for the assessment, blood tests, prescriptions and ongoing medical supervision.

A realistic private UK budget is often around £100–£200 per month, although some clinics advertise lower entry prices and more comprehensive packages can reach £200–£250 or more.

But the biggest difference between good and poor TRT care is not simply the price.

Proper treatment requires a correct diagnosis and ongoing monitoring of testosterone levels, blood count, prostate health and treatment response.

This guide compares NHS and private TRT in the UK, including costs, blood tests, prescriptions, monitoring and the questions worth asking before starting treatment.

How Much Does TRT Cost in the UK?

A useful 2026 comparison is:

TRT route	Typical cost
NHS assessment and follow-up	No direct consultation charge
NHS testosterone prescription in England	Standard NHS prescription charge where applicable
NHS prescriptions in Scotland, Wales and Northern Ireland	Usually free
Private initial blood tests	About £50–£200+
Private initial consultation	About £75–£280
Managed private TRT	About £100–£200 per month
More comprehensive private packages	About £150–£250+ per month
Typical first-year private budget	About £1,200–£2,500+

Prices vary because private clinics use very different billing models.

Some charge one monthly fee covering medication, blood tests and reviews.

Others advertise a cheaper membership but charge separately for:

testosterone;
prescriptions;
blood tests;
follow-up consultations;
needles and injection equipment;
delivery;
additional fertility treatment.

For example, one UK provider currently advertises all-inclusive TRT from £109 per month for testosterone enanthate and £129 for testosterone cypionate, including treatment, routine monitoring bloods and clinician reviews. Initial diagnostic blood tests are still charged separately.

Our dedicated guide to private testosterone replacement therapy costs in the UK breaks the private fees down in more detail.

How Do You Get TRT on the NHS?

The NHS does not normally prescribe testosterone simply because someone feels tired, has lower motivation or believes their testosterone should be higher.

Symptoms need to be considered alongside blood-test results.

The NHS says late-onset hypogonadism is diagnosed using symptoms together with testosterone blood testing. If results indicate testosterone deficiency, a GP may refer the patient to an endocrinologist or another specialist who can confirm the diagnosis and consider treatment.

Symptoms that can occur with testosterone deficiency include:

low libido;
erectile difficulties;
reduced spontaneous erections;
low energy;
loss of muscle strength;
reduced body hair;
low mood in some cases;
fertility problems.

However, these symptoms are not specific to low testosterone.

What Blood Tests Are Needed Before TRT?

A proper TRT assessment should not be based on a single random testosterone result.

Testosterone levels vary through the day and can also fall temporarily during illness, poor sleep or calorie restriction.

Assessment commonly involves repeat morning testosterone testing alongside other hormone and general health markers.

Depending on the situation, blood tests may include:

total testosterone;
SHBG;
calculated or measured free testosterone where appropriate;
LH;
FSH;
prolactin;
full blood count;
liver function;
lipids;
HbA1c or glucose;
PSA where appropriate.

LH and FSH can help determine whether low testosterone is arising primarily from the testicles or from the pituitary/hypothalamic system.

Prolactin may be useful when a pituitary cause is possible.

A full blood count is particularly important because testosterone can increase red-blood-cell production.

Our guide to male hormone blood tests explains testosterone, free testosterone, LH, FSH, prolactin and related tests in more detail.

NHS TRT vs Private TRT: What Is the Difference?

The medicine itself is not necessarily fundamentally different.

The bigger differences are usually access, choice, cost and service structure.

NHS TRT	Private TRT
Low direct patient cost	Usually £100–£200+ per month
May require GP and specialist pathway	Often much faster access
Formulation choices may depend on local prescribing	Potentially wider range of formulations
NHS blood tests and monitoring	Tests may be included or charged separately
No subscription fee	Subscription or membership models common
Less commercially driven	Quality varies between clinics

A private clinic is not automatically better because it offers more frequent testing or more complicated hormone panels.

Conversely, private care can be useful when NHS access is slow or when someone wants specialist assessment sooner.

The important question is whether the clinic is diagnosing and treating genuine testosterone deficiency rather than simply converting borderline blood results into a long-term subscription.

How Is TRT Monitored?

Monitoring is essential because testosterone can change blood counts, hormone levels, symptoms and prostate markers.

BSSM guidance recommends follow-up after treatment begins at approximately 3, 6 and 12 months, then annually once treatment is stable. Some men need closer follow-up if symptoms are not improving or blood results create safety concerns.

Monitoring typically includes:

testosterone level;
symptom response;
haematocrit or full blood count;
PSA where appropriate;
blood pressure and cardiovascular risk;
side effects;
dose and formulation review.

Haematocrit

Testosterone stimulates red-blood-cell production.

If the blood becomes too concentrated, the risk of complications may increase.

BSSM recommends keeping haematocrit below 54%. If it rises too high, the dose may need reducing, treatment may need pausing or another intervention may be required.

PSA

PSA testing may be appropriate before and during TRT, particularly in older men or those with prostate-risk factors.

A significant PSA increase may require urological assessment rather than simply continuing treatment unchanged.

If you are concerned about prostate symptoms or PSA testing, see our guide to prostate cancer symptoms, PSA testing and diagnosis.

Testosterone level

Blood-test timing depends on the formulation being used.

For injections, clinicians may focus on trough levels close to the end of the dosing interval.

For gels, the timing after application matters and contamination of the blood-sampling site must be avoided.

Which TRT Treatments Are Used in the UK?

The two most common approaches are testosterone gel and injections.

Testosterone gel

Gel is applied to the skin every day.

Advantages include:

steady daily dosing;
easy adjustment;
no injections.

Disadvantages include:

daily application;
variation in absorption;
risk of transferring testosterone to another person through skin contact.

Testosterone injections

Different injectable formulations have different dosing schedules.

Some are given every few weeks, while longer-acting testosterone undecanoate can be given much less frequently.

Private clinics may also use testosterone enanthate or cypionate in smaller, more frequent doses.

The best formulation depends on convenience, response, side effects, availability and clinical preference.

A treatment should not be chosen simply because a clinic markets one formulation as inherently superior.

What Happens to Fertility on TRT?

This is one of the most important issues to discuss before starting treatment.

External testosterone can suppress the hormonal signals that stimulate sperm production.

That means TRT can significantly reduce sperm count and may cause temporary infertility.

It can also reduce testicular size in some men.

If you want children now or in the future, tell the clinician before starting treatment.

Depending on your circumstances, options might include:

investigating the cause of low testosterone first;
avoiding TRT temporarily;
fertility-preserving treatment under specialist supervision;
sperm freezing in selected cases.

Some private clinics offer hCG alongside testosterone in an attempt to preserve testicular function and fertility.

That adds cost and should be prescribed for a clear clinical reason rather than automatically added to every TRT package.

One current provider, for example, charges an additional £30 per month for hCG.

See our guide to male infertility and low sperm count for more information.

What Should You Watch for With Private TRT Clinics?

Private TRT is a legitimate medical service, but the market is highly commercial.

A good clinic should be willing to say:

“Your results do not support treatment.”

Be cautious if a provider:

diagnoses low testosterone from one test;
relies mainly on symptoms without proper blood testing;
guarantees dramatic muscle or sexual improvements;
does not ask about fertility;
does not monitor haematocrit;
does not consider prostate health;
automatically prescribes multiple add-on hormones;
pushes treatment despite normal repeat testosterone levels;
does not have a clear plan for stopping treatment if symptoms do not improve.

BSSM guidance specifically says that failure to achieve meaningful improvement within a reasonable period should prompt reconsideration of treatment and investigation for other causes of symptoms.

TRT should therefore be a treatment trial with measurable goals, not an automatic lifelong subscription from the first prescription.

Frequently Asked Questions

How much does TRT cost privately in the UK?

A properly managed private service commonly costs around £100–£200 per month. Some lower-cost plans begin below £100, while comprehensive programmes can cost £200–£250 or more.

How much does private TRT cost in the first year?

A practical budget is roughly £1,200–£2,500+, including initial blood tests, consultations, medication and monitoring.

Is TRT free on the NHS?

NHS assessment and follow-up do not carry private consultation charges. In England, the standard prescription charge may apply unless you are exempt. NHS prescriptions are generally free in Scotland, Wales and Northern Ireland.

Can my GP prescribe testosterone?

GPs can investigate suspected testosterone deficiency and may prescribe under local arrangements, but many patients are referred to endocrinology or another specialist for confirmation and treatment planning.

How low does testosterone need to be for TRT?

There is no single result that should be interpreted without context. Diagnosis depends on symptoms, repeat morning testosterone measurements and the wider clinical picture.

Do you need two testosterone tests?

Repeat testing is normally appropriate because testosterone fluctuates and a single low result may be temporary or misleading.

How often should blood tests be done on TRT?

BSSM recommends review at roughly 3, 6 and 12 months after starting treatment and then annually once stable, with more frequent monitoring when there are safety concerns or a poor response.

What blood tests are monitored?

Common monitoring includes testosterone, full blood count or haematocrit and PSA where appropriate. Other tests may depend on your health and treatment.

Why does TRT increase haematocrit?

Testosterone stimulates red-blood-cell production. Excessive increases can make the blood more concentrated, which is why regular monitoring is important.

What haematocrit is too high on TRT?

BSSM recommends keeping haematocrit below 54%. A high result may require dose adjustment or treatment review.

Does TRT increase PSA?

PSA may change during treatment. Significant increases require clinical assessment and can sometimes lead to urology referral.

Does TRT cause prostate cancer?

Current evidence does not show that appropriately prescribed TRT simply causes prostate cancer, but prostate health still needs consideration before and during treatment, particularly in men at higher risk.

Does TRT make you infertile?

It can significantly suppress sperm production and may cause temporary infertility. Fertility plans should be discussed before treatment begins.

Can TRT shrink the testicles?

Yes. Suppression of LH and FSH can reduce testicular activity and sometimes testicular volume.

Is hCG necessary with TRT?

Not for everyone. It may be considered in selected men where preserving testicular function or fertility is important, but it adds cost and should have a clear clinical indication.

Is testosterone gel better than injections?

Neither is universally better. Gels offer convenient dose adjustment without injections, while injections may be more convenient for people who prefer less frequent treatment. Choice depends on clinical and personal factors.

How long do you stay on TRT?

TRT may become long-term when genuine testosterone deficiency persists and treatment provides benefit. It should still be reviewed regularly rather than automatically continued forever.

What if TRT does not improve my symptoms?

The diagnosis, dose and alternative causes of symptoms should be reconsidered. Continuing testosterone indefinitely despite no meaningful benefit is not good practice.

This guide provides general UK information rather than individual hormone-treatment advice. Testosterone should be prescribed only after appropriate assessment and blood testing, with ongoing medical monitoring.