TRT Benefits, Risks and Monitoring: A Practical UK Guide

Testosterone replacement therapy supplies testosterone when the body is not producing enough and a man has symptoms consistent with hypogonadism. It may be given in forms such as gels or injections, with the choice depending on clinical factors, patient preference, availability and the monitoring each preparation requires.[1,3]

TRT should follow assessment rather than lead it. Good practice is to confirm compatible symptoms and consistently low morning testosterone, investigate the likely cause, check relevant safety factors and discuss fertility before prescribing.[1]

In men with confirmed hypogonadism, TRT may improve libido and some aspects of sexual function. It may also support lean body mass, reduce fat mass, improve anaemia and help maintain bone density. The effect on energy, mood and concentration is less predictable because these symptoms often have several causes.[1,2]

Treatment goals should be agreed before starting. A useful follow-up asks whether the original symptoms have improved, whether side effects have appeared and whether blood results remain within the clinician's intended range. A higher testosterone number is not, by itself, proof of a good outcome.

TRT can increase haemoglobin and haematocrit, making the blood more concentrated. It can also cause acne or oily skin, fluid retention, breast tenderness and changes related to the chosen formulation. External testosterone suppresses sperm production and can reduce testicular volume, so fertility must be discussed before treatment.[1,4]

Prostate symptoms and PSA are considered according to age, risk and clinical context. Cardiovascular health also needs an individual assessment; testosterone should not be marketed as a way to prevent heart disease. The balance of benefit and risk depends on the diagnosis, dose, preparation, other medical conditions and quality of follow-up.[1]

TRT may be unsuitable or need specialist input when a man is actively trying for children, has a high haematocrit, untreated severe sleep apnoea, significant uncontrolled heart failure, a recent major cardiovascular event, or suspected or active prostate or breast cancer. This is not a complete screening list.[1]

Tell the clinician about urinary symptoms, snoring or witnessed pauses in breathing, previous blood clots, heart disease, cancer history, fertility plans and every medicine or hormone product you use. Buying testosterone outside a monitored clinical pathway makes it harder to assess both the original diagnosis and treatment safety.

Monitoring normally includes symptoms, side effects, testosterone levels and haematocrit. PSA and prostate assessment may be appropriate depending on age and risk. The timing of a testosterone sample depends on the formulation, so follow the prescriber's instructions rather than arranging an untimed test.[1,4]

Reviews are usually closer together after treatment starts or changes, then less frequent once the dose and response are stable. The exact schedule belongs to the prescribing clinician. Missed monitoring can mean that a dose problem or safety change goes unnoticed.[1]

Ask who will review your case, what professional registration they hold, how diagnosis is confirmed, what is included in follow-up, how fertility is handled and what happens if treatment does not improve your symptoms. Pricing should distinguish consultation, blood testing, medication and ongoing monitoring.

Mens Health TRT is delivered by Letterbox Pharmacy, a GPhC-registered pharmacy. The first step is a free telephone consultation; blood testing is in person at 4 Brick Lane, London, by appointment. A consultation or blood test does not guarantee a prescription.