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Low testosterone symptoms testing treatment

Men’s health

Written by the Veritas Pharmacy clinical team · 113 Chester Road, Sunderland · GPhC Registered 9012617

Low energy, reduced libido, difficulty building muscle, or a general sense that something is off. These can all be signs of low testosterone, a condition that is more common than many men realise and, importantly, straightforward to test for. Here is what to look out for and how testing works.

What testosterone actually does

Testosterone is the main male sex hormone, produced mainly in the testes. It is involved in far more than just libido and muscle mass, playing a role in mood, energy levels, bone density, red blood cell production, and cognitive function. Levels naturally decline with age, typically from around the age of 30 onwards, but a drop that is steeper or earlier than expected can cause noticeable symptoms.

Signs of low testosterone

Symptoms can develop gradually, which is part of why they are often missed or put down to simply getting older. Common signs include:

Low energy or fatigue Reduced libido Erectile dysfunction Loss of muscle mass Low mood or irritability Difficulty concentrating

None of these symptoms are unique to low testosterone on their own, which is exactly why testing is useful rather than guessing based on symptoms alone.

How testosterone testing works

A Testosterone Profile Plus blood test measures total and free testosterone, along with albumin and sex hormone binding globulin, a protein that affects how much testosterone is available for your body to use. Because testosterone naturally follows a daily rhythm, peaking in the morning, testing is usually done earlier in the day for the most accurate result.

A single low reading is not always enough to confirm a diagnosis, since levels can fluctuate with illness, stress, and poor sleep. Your clinician will explain whether a repeat test or further investigation is worthwhile based on your result and symptoms.

What happens if levels are low

Not every low result needs treatment. Lifestyle factors such as poor sleep, excess body weight, high stress, and heavy alcohol use can all lower testosterone, and addressing these can sometimes bring levels back up without medication. Where levels are persistently low alongside clear symptoms, testosterone replacement therapy may be discussed, though this requires careful clinical assessment and is not appropriate for everyone.

Testing is the first step, not the only one. A raised or lowered marker on its own rarely tells the full story. Your clinician will look at your whole picture, including symptoms, general health, and other blood markers, before discussing what, if anything, is the right next step.

Concerned about your testosterone? Book a same-day test.

Book testosterone testing

Or call 0191 503 4053 · 113 Chester Road, Sunderland SR4 7HG

Testosterone FAQs

What does the Testosterone Profile Plus test include?
It measures total and free testosterone, albumin, and sex hormone binding globulin, giving a comprehensive picture of testosterone levels and how much is available for the body to use. It costs £59, plus a £35 phlebotomy fee per visit.
What time of day should I get tested?
Testosterone levels are typically highest in the morning, so testing earlier in the day generally gives the most accurate and representative result.
Can low testosterone cause erectile dysfunction?
It can be a contributing factor, though erectile dysfunction has many possible causes, including cardiovascular health, mental health, and other medications. Testing helps establish whether testosterone is playing a role.
Is testosterone replacement therapy right for everyone with low levels?
No. It requires careful clinical assessment and is not suitable for everyone, particularly those with certain existing health conditions. A full discussion with a clinician is needed before considering it.
Can lifestyle changes improve testosterone naturally?
Yes, in many cases. Improving sleep, reducing alcohol intake, managing stress, and maintaining a healthy weight can all help support healthier testosterone levels.

Related reading: Testosterone testing · Hormone testing · Book a private pharmacist consultation

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