Male Fertility Low Testosterone Blood Test, from our experts to you.
Dr Sam Rodgers MBBS, MRCGP

Chief Medical Officer meet our doctors

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What is
testosterone?

Testosterone is a hormone that causes male characteristics. For men, it regulates sex drive and controls bone mass, fat distribution, muscle mass, strength, and the production of red blood cells and sperm. Heavy alcohol consumption, liver disease and steroid use can all negatively affect testosterone levels. In men, testosterone levels fall naturally after the age of 30, and for many, this decline is normal and does not cause any negative symptoms. For others, low testosterone can affect mood, motivation, libido and muscle mass.


What happens to fertility
if testosterone is low?

If your testosterone levels drop below the normal range, it can impact fertility, causing decreased sperm production, reduced sex drive, and erectile dysfunction.


How can I check
my testosterone levels?

Checking your testosterone level is easy with our simple finger-prick Male Fertility Low Testosterone Blood Test that you can do at home.


What's included?

Hormones
Select profile for more information

Testosterone Testosterone is a hormone that causes male characteristics. For men, it helps to regulate sex drive and has a role in controlling bone mass, fat distribution, muscle mass, strength and the production of red blood cells and sperm. Testosterone is produced in the testicles of men and, in much smaller amounts, in the ovaries of women. Testosterone levels in men naturally decline after the age of 30, although lower than normal levels can occur at any age and can cause low libido, erectile dysfunction, difficulty in gaining and maintaining muscle mass and lack of energy. Although women have much lower amounts of testosterone than men, it is important for much the same reasons, playing a role in libido, the distribution of muscle and fat and the formation of red blood cells. All laboratories will slightly differ in the reference ranges they apply because they are based on the population they are testing. The normal range is set so that 95% of men will fall into it. For greater consistency, we use the guidance from the British Society for Sexual Medicine (BSSM) which advises that low testosterone can be diagnosed when testosterone is consistently below the reference range, and that levels below 12 nmol/L could also be considered low, especially in men who also report symptoms of low testosterone or who have low levels of free testosterone.

How to prepare
for your test

Special instructions

Prepare for your Male Fertility Low Testosterone Blood Test by following these instructions. Please take your sample before 10am. Avoid taking your sample from a finger used to apply hormone gels/pessaries in the past 4 weeks. Use gloves to apply these. Do not take biotin supplements for two days before this test, discuss this with your doctor if it is prescribed. If you are a woman take this test two to five days after the start of your period, ideally on day three. It can be taken any time if you do not have periods.


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