As a man, it’s really important to know your testosterone (T) levels, whether it’s normal or not.

Testosterone is the number one male hormone for our muscle growth, sex drive, and overall well-being. As we age, our T levels gradually start to drop, and about 40% of men suffer from low testosterone at the age of 40 or above.

But sometimes, due to our bad lifestyle, most young men decreased their T levels in their 30s and even 20s. But how do you know, is your testosterone levels low or high?

In this article, we’ll check out fourteen signs of low testosterone in men. In addition, it also includes the causes of it and the best ways to return your T levels to normal levels. So, let’s dive in!

14 Signs of Low Testosterone in Men

14 Signs of Low Testosterone in Men (And How to Fix It)

Before we start, I want to tell you that if you have experienced some of these signs, then your T levels low. But nothing to worry about; we’ll also know the best possible ways to easily fix it.

Okay, let’s check out the signs of low T levels in men.

1. Low Sex Drive

When we’re suffering from low T levels, decreased sex drive is one major sign you can experience.

Because testosterone isn’t only improved your sex drive, but low of it can cause a reduction of your ability to have satisfying sexual activity.

2. Loss of Muscle Mass

As I said before, testosterone is the number one hormone responsible for muscle growth in men. So, lack of it will stop your muscle gain or even responsible for muscle loss.

Men with low T levels will often experience very low muscle in their body, which can lead to several health diseases.

3. Increased Body Fat

High body fat can cause low testosterone levels in men because higher testosterone distributes the fat throughout the body and even can help to burn fat. But the decrease of T levels ruins all the good processes.

Also, excess fat in your body decreases the body’s ability to produce and utilize testosterone. Which leads to a rise in body fat and further lowered your already lower-than-normal T levels.

4. Fatigue

Fatigue is a common cause of low testosterone. When you suffer from low T levels, you might feel incredibly tired or don’t have the energy you’re used to.

Furthermore, it also can bring you normal aging, anxiety, and depression.

5. Hair Loss

Although hair loss varies from several factors, the two main reasons might be your genetics and low testosterone levels.

So, if you are genetically correct, it means if your father and grandfather had a nice and full head of hair, even though you’re losing it, then this might be the cause of testosterone deficiency.

6. Low Semen Volume

Testosterone plays an important role in semen production. Low T levels can affect the production of seminal fluid because the seminal vesicles and the prostate need this hormone to produce the right amount of semen.

So, men with low T levels will often experience low semen volume during ejaculation.

7. Reduced Testicle Size

When you’re ejaculating too often or suffer from low testosterone, you will most likely experience reduced testicle size.

Some studies (1) suggested that higher testosterone levels among mammals are associated with larger testicles, while low of it is associated with decreased testicle size.

8. Mood Changes

Mood changes/swings are one of the common causes of low testosterone levels in men. During the low levels of this hormone, you’ll experience sudden mood changes, increased stress, and depression.

9. Decreased Bone Density

Testosterone is one of the most important hormones to gain and maintain bone mass. Critically low T levels can cause lost bone mass over time.

Due to low bone density, you can experience spine or back pain, bad posture, and decreased bone strength.

10. Sleeping Problems

Low testosterone is associated with insomnia and other sleep disturbances and can further cause sleep apnea. For example, if you snore loudly and even after a full night’s sleep, you feel tired, you might have sleep apnea.

Sleep apnea is a serious medical condition of sleep disorder that stops and starts your breathing repeatedly. So, due to low testosterone, you might experience excessive daytime sleepiness, loud snoring, morning headache, etc.

11. Stops Workout Results

Like I said earlier, testosterone is the main hormone responsible for muscle growth in men. So, low T levels will stop achieving your desired fitness goals, whether you’re bulking or cutting.

Due to testosterone deficiency, you’ll lack strength and endurance during a workout or lack the energy to do any activity. And, of course, you may doesn’t see any noticeable workout results.

12. Reduced Erectile Function

Low testosterone can also cause erectile dysfunction (ED) because testosterone stimulates men’s sex drive. However, testosterone alone doesn’t cause an erection. Other factors may play a role, including diabetes, thyroid problems, alcohol use, depression, and others.

Although doing testosterone treatment, some studies find very little to no improvement on erection difficulties.

13. Weak Memory Power

Low T levels can directly affect memory and can influence your mental and emotional health.

A study published in the Journal of the American Medical Association found that doing testosterone supplementation to low levels person has improved memory.

14. Lack of Motivation

Testosterone deficiency is one of the main reasons to feel less energetic and motivated.

Further, low T levels can disturb your mental and emotional health and cause depression, anxiety, excess sleep during the day, feeling less energetic than you used to, etc.

How Do You Fix Low Testosterone?

Do the above signs present in you?

If yes, don’t worry. All you need to do is have patience and follow a healthy lifestyle. Simultaneously, eliminate the habits that decrease your testosterone levels.

Here is the eight proven ways to increase testosterone naturally:

  1. Exercise Regularly
  2. Eat Healthy Balanced Diet
  3. Get Enough Sleep
  4. Maintain a Healthy Weight
  5. Reduce Stress
  6. Take Multivitamin
  7. Avoid Testosterone Killing Foods
  8. Talk to a doctor for testosterone therapy

Follow the ways mentioned above, and over the weeks or months, you’ll feel significant improvement in your testosterone levels.

To know more about the following points and increasing T levels, I would highly recommend you read the detailed guide on how to increase testosterone levels. Here you’ll get the detailed version of the following points and some FAQs regarding testosterone.

What Causes Low Testosterone Levels in Men?

The first and crucial factor is your age. Yes, as we age, our body gradually drops testosterone levels, and it starts at the age of 30 and continues (1% every year) throughout life.

Beyond age, there’re many causes of low testosterone in men, including:

  • Overweight or obesity
  • Eating too much unhealthy food
  • Insufficient sleep
  • Certain medication and illness
  • Taking of alcohol and other drugs
  • Extreme low-fat diet
  • High-stress level
  • Lack of vitamin D and zinc
  • Taking iron-rich diet
  • Injury or infection of the testes (orchitis)

So, to get back or increase your testosterone levels, avoid the causes mentioned above that suppressed or even lowered your testosterone levels.

What Happen if Low Testosterone Goes Untreated?

Low testosterone is also known as “low T” — a natural condition in men as they get older. In their 60s or 70s, roughly 20-30% of men have low testosterone, and as they age more, half of them have dropped their T levels. So it’s normal as we age older.

But some men suffer from low T levels in their 30s, 40s, or even some are in 20s. These category men seriously need to treat their testosterone deficiency.

If low testosterone goes untreated, it can cause many health problems, including loss of muscle mass, low sex drive, decreased bone density, hair loss, and so on.

But it would be best if you didn’t take that risk because low testosterone is relatively easy and simple to treat. So instead, your aim should be to get your testosterone levels back to its normal level.

Because testosterone plays a key role in the physical development of a male body, it helps build muscle, grow hair on the face and body, deepening voice, enhance male’s sexual function, and so on.

Follow the above “how to fix it” section to get back healthy T levels.


I hope you clearly understand the signs of low testosterone in men. If you’re in a low testosterone category, don’t worry because it’s very easy to get back to your healthy testosterone range.

All you need to do is digest this article to increase or maintain your testosterone levels, providing you with some evidence-based ways to get your normal T levels.

If you have any questions regarding low testosterone, feel free to ask in the comment section below. We’ll glad to help you! 🙂