6 Causes of Testosterone Deficiency In Men.
6 Causes of Testosterone Deficiency In Men

We’re on the verge of epidemic of low testosterone around the world. This is not scaremongering or hot air.

This is the real deal.

Men of all ages are suffering from symptoms of testosterone deficiency.

According to a study on testosterone replacement therapy in the UK, over a 10 year period from 2001-2011 testosterone prescriptions increased 90%!

Although the authors maintain the number of men with low testosterone (hypogonadism) remained consistent:

“However, the number of men with likely unequivocal hypogonadism (testosterone less than 6·0 nm) remained constant at 5·2% in 2000 and 6·3% in 2010.”

There are two issues here. Firstly, classifying only 6.0 nmol/L or below as testosterone deficiency is a JOKE.

There are men with higher total testosterone yet have symptoms of low testosterone. However, doctors insist on treating them as a lab number.

Secondly, even though the pharmaceuticals may have ramped up their marketing for TRT, I doubt even they could hope to achieve a 90% prescription increase.

So what’s really going on?

To find out, let’s take a look into the main causes of testosterone deficiency in men.

Environmental Toxins

For those who doubt the effect of the environment on your endocrine system – take a look around.

We re now bombarded all day every day from environmental toxins. From car exhaust fumes to

The European Union has even had to regulate hormone-disrupting chemicals because it has gotten that bad.

If environmental toxins can cause cancer and diabetes, you can bet they cause testosterone deficiency.

Environmental toxins testosterone deficiency.

Metabolic Syndrome / Obesity

Metabolic syndrome or obesity lower testosterone levels in men. The reason for this is because adipose [fat] tissue is abundant in the aromatase enzyme.

The aromatase enzyme converts testosterone into estradiol. This results in more body fat and more testosterone converted into estradiol.

A vicious cycle.

You don’t have to look far to see that obesity is everywhere in the West.

Therefore, we can conclude obesity is a major cause of testosterone deficiency in society today.


It’s well documented as men grow older their testosterone levels decrease.

Indeed, testosterone decreases by around 1% every year from the age of 30.

It’s a natural part of the ageing process.

Although there is now research to suggest “there is an age-independent population-level decrease in T”.


Another cause of testosterone deficiency is injury to the testes.

This could be due to a sports injury or an accident for example.

Furthermore, conditions such as testicular cancer may result in the interruption of testosterone production.

However, it’s not just direct impacts on the testes that cause testosterone deficiency.

Head trauma that damages the pituitary gland can also impair hormonal function.

Anabolic Steroids

Men take anabolic steroids for a variety of reasons; to gain muscle mass, confidence or perhaps even acceptance.

However, anabolic steroids can cause testosterone deficiency.

Anabolic steroids.

Here’s why:

Most men have no idea of the consequences when they take anabolic steroids.

They’re unaware that when they take steroids, they shut down their own testosterone production.

When they come off a steroid cycle they feel terrible. Their body has stopped producing testosterone.

And often, the damage done to their endocrine system is irreversible.

Pituitary Tumours

The pituitary gland is part of the endocrine system and is responsible for producing hormones in the body.

They include hormones which are vital to testosterone production: Follicle stimulating hormone (FSH) and luteinizing hormone (LH).

The presence of a pituitary tumour can disrupt production of testosterone. There are two types of pituitary tumour: functional and nonfunctional adenomas.

Final Thoughts

The root cause of testosterone deficiency varies in every individual.

Some cases are more clear cut – like pituitary tumours and impact trauma to the testes.

Some of the causes are more insidious. Obesity and environmental toxins are rampant in our society.

They’re almost inescapable.

However, regardless of the cause, it’s important you address low testosterone. Otherwise you will become a passive participant in your own life.

Aside from that, low testosterone has been associated with increased mortality.

The NHS still does not fully understand testosterone replacement therapy.

For the #1 in patient care and knowledge of testosterone replacement therapy in the UK – look to balance my hormones.