How Do You Know If Your Testosterone Is Low?

Introduction

Testosterone is often thought of as a symbol of masculinity, strength, and virility. While this hormone plays a vital role in male sexual development, its impact goes far beyond that. Low testosterone, or hypogonadism, can quietly affect a man’s energy, mood, muscle mass, libido, and even fertility — often without dramatic symptoms at first.

So how do you know if your testosterone is low?

This article breaks down the signs, causes, and when to seek medical advice.

What Is Testosterone?

Testosterone is the primary male sex hormone. It is responsible for:

• Regulating sex drive and erections

• Supporting muscle growth and fat distribution

• Maintaining bone density

• Supporting sperm production and fertility

• Influencing mood and mental clarity

As men age, testosterone levels naturally decline. However, some men experience a more significant drop that causes unwanted physical or emotional changes.

Common Signs of Low Testosterone

Here are the most common symptoms men may experience:

1. Low Libido (Sex Drive)

A noticeable decline in sexual interest is one of the hallmark signs of low testosterone.

2. Erectile Dysfunction

You may have difficulty achieving or maintaining an erection. Morning erections may also become less frequent.

3. Fatigue and Low Energy

Men with low testosterone often report constant tiredness or a lack of stamina, even with proper sleep.

4. Mood Swings and Depression

Irritability, sadness, or emotional numbness may indicate hormonal imbalance.

5. Reduced Muscle Mass

Difficulty building muscle or a sudden drop in strength, despite regular workouts, is a red flag.

6. Weight Gain, Especially Belly Fat

Low testosterone can lead to increased fat accumulation, particularly around the abdomen.

7. Decreased Beard or Body Hair Growth

Thinner facial hair or reduced body hair can suggest hormone deficiency.

8. Lower Semen Volume

You may notice a reduced amount of semen during ejaculation.

9. Fertility Issues

Low testosterone can interfere with sperm production and motility, affecting chances of conception.

How Is Low Testosterone Diagnosed?

A simple blood test is the only reliable way to confirm low testosterone levels. The test should be done in the morning (typically between 7 AM and 10 AM), when levels are naturally highest.

Normal total testosterone levels range between 300 to 1,000 ng/dL. A level below 300 ng/dL may indicate hypogonadism, especially if accompanied by symptoms.

Additional testing may include:

• Free testosterone (active hormone level)

• LH and FSH (pituitary hormones)

• Prolactin (if other hormone issues are suspected)

• Semen analysis (if fertility is a concern)

When Should You See a Doctor?

You should seek medical evaluation if you:

• Notice persistent symptoms affecting your daily life

• Experience sexual dysfunction or infertility

• Have a history of testicular injury, surgery, or hormonal conditions

• Are overweight, diabetic, or over the age of 40 with symptoms

Dr. Ahmed Ali’s Expert Insight

“Low testosterone can creep into your life silently. Many men normalize tiredness, low libido, or mood swings without realizing that hormones might be the cause. Don’t ignore your body’s signals. Testing is simple — and solutions exist.