Low Testosterone Test

A low testosterone test measures the amount of testosterone in your blood. It helps assess whether low levels may be causing symptoms like fatigue, low libido, or reduced muscle mass.

Symptoms can include low sex drive, erectile dysfunction, tiredness, mood changes, decreased muscle strength, and weight gain—especially around the belly.

If you’re experiencing symptoms of hormonal imbalance, this test can confirm whether low testosterone is a contributing factor and guide treatment options like TRT (testosterone replacement therapy).

It’s a blood test usually taken in the morning, when testosterone levels are at their highest. It measures total testosterone and sometimes free testosterone levels.

Some providers recommend fasting, especially if other hormones or lipids are being tested at the same time. Follow the instructions provided with your test kit.

In adult males, normal total testosterone typically ranges from 8 to 29 nmol/L. However, symptoms—not just lab values—play an important role in diagnosis.

Yes. Testosterone levels are highest in the morning and can drop throughout the day. That’s why it’s best to test early—usually between 7 and 10 a.m.

Ageing, obesity, chronic stress, diabetes, medications, and certain medical conditions can all affect testosterone production.

Yes. Options include lifestyle changes, medication, or testosterone replacement therapy (TRT), which must be prescribed and monitored by a healthcare provider.

Yes. Your information and results are kept strictly confidential and in compliance with UK data privacy laws.