What Causes Low Testosterone


Low T, also known as low testosterone, is a medical condition caused by lack of or inadequate production of the hormone testosterone. Testosterone is needed for normal development and maintenance of male characteristics. Low testosterone can cause issues such as decrease in muscle mass, strength, libido, mood, and energy levels. Even though low testosterone is usually observed in men age 40 and above, it can also affect younger men.

To understand low T, its effects on an individual’s hormones and health, one must look at the role of testosterone. This guide discusses the symptoms, causes, diagnostic methods and treatment options to restore healthy levels of testosterone.

Causes of Low Testosterone

Low testosterone is now a frequent health issue affecting men of any age. Different reasons can contribute to it, such as lifestyle choices, medical problems, or particular medications. Here, we will take a look at the potential causes of low testosterone and how to fix them.


As men age, their testosterone falls. This decrease slows after 40 but keeps dropping until 70. After 70, testosterone levels plummet quickly. Men over 40 may have trouble getting lean muscle or keeping up energy and libido due to less testosterone. Plus, with aging comes greater risk of obesity and diabetes, which further reduce testosterone.


Obesity can reduce testosterone levels in men. Abdominal obesity specifically is linked to lower production and lower concentrations of testosterone. Fat tissue generates biochemical substances which reduce the body’s capacity to make testosterone. These substances affect hormones that are responsible for testosterone levels.

Eating healthy and exercising regularly can benefit overall health, and help maintain healthy testosterone levels.


Stress can negatively affect testosterone production. This is because of hormones like cortisol and glucocorticoids. Long-term stress affects testosterone in several ways. It increases enzymes that break it down, and decreases enzymes that produce it. Extreme or prolonged stress can lower testosterone levels. Examples are: tough job, relationship issues, chronic fatigue syndrome or any other taxing issues.

Poor lifestyle choices like drinking, smoking and bad nutrition increase stress hormones and toxins in the bloodstream, leading to low testosterone. Additionally, diseases like diabetes cause hormonal imbalances in the body, which can lead to decreased testosterone production.

Testicular Injury

Testicular injury occurs when trauma to the testicles happens. This can be from sports or a direct blow. This interrupts the testicular function, leading to decreased testosterone production. It is not common but can occur from direct blows. Symptoms include swelling and pain. Low testosterone levels may also be present.

If you feel any changes to your body due to activities, it’s important to see your doctor. They can make sure it is nothing serious or check for an underlying medical condition.


Many medications can reduce a person’s natural production of testosterone. These include opioid pain relievers, type 2 diabetes drugs, steroids, AIDS and prostate cancer drugs, and antidepressants. Valproate seizure medications, anabolic steroids, and long-term alcohol use have also been linked to low testosterone. Plus, obesity can increase the production of estrogen, further suppressing natural testosterone production. Weight loss could help restore normal hormone levels.

Hormone Disorders

Endocrine diseases, also known as hormone disorders, can lead to low testosterone levels. The two main causes are testicles not making enough of the hormone or a pituitary gland disorder. The pituitary gland controls testosterone production and other hormones.

Common endocrine diseases that can make testosterone levels drop are:

  • Hypogonadism: When the body doesn’t make enough sex hormones due to a problem with the testicles or the hypothalamus and pituitary glands.
  • Hyperprolactinemia: High prolactin levels in the blood cause low serum testosterone. It can be caused by a tumor or an abnormal response to stress/illness.
  • Cushing’s Syndrome: Too much cortisol from either/both adrenal glands reduces testosterone production. Can be caused by taking asthma/allergy medication long-term.
  • Hypopituitarism: A lack of hormones from the pituitary gland due to damage or shrinkage, resulting in low sex hormones, including testosterone.

Regular check-ups and tests with your doctor can prevent health issues from getting worse.

Symptoms of Low Testosterone

Having low testosterone can cause a range of symptoms, such as:

  • Depression
  • Low libido
  • Difficulty with concentration
  • Trouble sleeping
  • Low energy
  • Loss of muscle mass
  • Reduced sperm production
  • Infertility

These are only some of the issues that occur when testosterone levels drop too low. Let’s look further into this topic and discover the other signs of low testosterone.

Low Libido

Low libido, or reduced interest in physical intimacy and sex, is a common symptom of low testosterone. Relationship problems, stress, and other factors can also contribute. Low testosterone can drastically reduce the desire for sex. This can be a sign that needs investigating.

Other signs of low libido include:

  • difficulty getting aroused
  • difficulty reaching orgasm
  • fewer or no orgasms

If you experience these alongside fatigue, depression, or irritability, it’s best to talk to your doctor about hormone-related causes. Low testosterone is treatable. Lifestyle changes can restore sex drive in more than 80% of male adults experiencing andropause.

Erectile Dysfunction

Erectile Dysfunction (ED)? Yep, it’s one of those common signs of low testosterone. ED is a struggle to keep or sustain an erection for sexual activity. Men with ED due to low testosterone? Meds like Kamagra oral jelly and tablets are the answer.

In addition to meds, lifestyle changes like less stress and regular exercise may also aid in relieving symptoms of low testosterone, like ED.

Hair Loss

Hair loss is a common sign of low testosterone in men. Testosterone has an effect on hair growth and its cycle. Low levels can cause the cycle to shorten, meaning less nutrients for the follicles and slower growth. This leads to less volume and thinning strands, increasing risk of baldness.

Testosterone also contributes to scalp hair curl, facial and chest growth. With low levels, these areas may be smaller or bald. Other hormones related to testosterone, such as DHT, can affect hair growth and retention, including male pattern baldness and alopecia areata.


Fatigue is a common sign of low testosterone. Men may feel exhausted and have less energy than usual, making it challenging to finish daily tasks. This can also reduce a man’s sex drive, causing him to lose interest in activities he once enjoyed and feel guilty or have low self-esteem.

Other symptoms of low testosterone include:

  • Weak muscles
  • Less bone density
  • Depression
  • Memory loss
  • An increased risk of heart disease and other severe issues due to its chronic nature.

Doctors often recommend Testosterone Replacement Therapy (TRT) to restore the proper balance of testosterone in men whose levels are too low.

Decreased Muscle Mass

Muscle mass loss is a common and visible symptom of low testosterone. Even if you exercise and eat healthy, it can still be caused by low testosterone. Low testosterone leads to a loss of muscle mass, strength, and endurance. It also makes recovery time longer. Working out less often causes decreased strength and fitness, even if your diet hasn’t changed. Body fat appears in place of lean muscle.

Low testosterone is often accompanied by loss of libido and fatigue.

Mood Changes

Low testosterone is not right. It impacts more than just physical health. Its symptoms include:

  • Depression
  • Apathy
  • Anxiety
  • Fatigue
  • Mood swings
  • Episodes of irritability and anger may occur.

This could be due to a decline in motivation or difficulty managing frustration or stress. Studies show that when low testosterone is treated, people feel better psychologically.

Diagnosis and Treatment

Low testosterone? A real bummer! It can affect men and women differently. No energy, no libido, maybe even mental health issues.

To get the right diagnosis, medical professionals need to find the root cause. Then they can decide the best treatment.

What are the diagnosis and treatment options for low testosterone? Let’s check ’em out!

Blood Test

To diagnose low testosterone, a blood test is the first step. This test checks the testosterone levels in your blood, as well as other hormones that can influence it. The doctor usually orders a sample taken after fasting for several hours, as this gives the most accurate result.

The sample checks both total and free testosterone, which is the active form. Different labs may give various reference ranges. So, talk to your medical practitioner about what’s normal for you. Results that are outside these parameters could indicate a problem.

If all hormone levels are normal, further investigation is needed. This could be to rule out conditions like pituitary or adrenal gland dysfunction, or other hormone-related issues. The doctor may suggest lifestyle changes or medicines prior to ordering more tests or a referral to a specialist.

Hormone Therapy

Hormone therapy is a treatment used by men with Low T. It can return testosterone to normal levels, reduce symptoms, and lower the chances of health issues linked to Low T. The most widespread kind of hormone therapy is testosterone replacement therapy (TRT). TRT uses substitute hormones to adjust the level of free testosterone in the body. Other hormone therapies may include growth hormone, cortisone, and other steroid hormones.

Hormone therapies come in several forms: injections, pellets, creams, gels, and patches. Your doctor may suggest one type over another, depending on your age, condition, and lifestyle.

But, it’s important to remember that hormone therapies have side effects, so talk to your doctor before starting a new treatment plan. Common side effects are:

  • Weight gain/loss
  • Sleep pattern changes
  • Mood swings
  • Decreased libido

While on hormone therapy, keep your doctor up-to-date on how you’re feeling. This way, any issues can be managed quickly and changes can be made if needed.

Lifestyle Changes

No specific cure exists for low testosterone. But, modifications in lifestyle and diet can help!

  • Exercise is key – it boosts your metabolism and hormones and increases physical stamina.
  • Get seven hours of restful sleep every night.
  • Eat lean proteins and veggies for the fuel your body needs.
  • Avoid stress and toxins from cigarettes, alcohol, and other drugs.
  • Natural supplements, like zinc and vitamins D3, B6, and C, may also boost testosterone production.


To wrap up, decreased testosterone can be caused by both external and internal factors. Common ones include:

  • Inadequate sleep and nutrition
  • Certain drugs
  • Hypothyroidism
  • Too much alcohol
  • Age-related drops in production

Further, medical issues like diabetes, obesity and chronic tension can also cause testosterone levels to dip. If someone is having indications of low testosterone or related male health problems, it is essential they consult a doctor to find out what’s causing it and what options there are.

Frequently Asked Questions

Q: What is testosterone?

A: Testosterone is a hormone that plays a crucial role in the development of the male reproductive system, as well as contributing to muscle mass, bone density, and hair growth.

Q: What causes low testosterone?

A: Low testosterone can be caused by a variety of factors, including age, injury or infection to the testicles, certain medications or medical conditions, and lifestyle factors such as obesity or excessive alcohol consumption.

Q: What are the symptoms of low testosterone?

A: Symptoms of low testosterone can include decreased sex drive, erectile dysfunction, fatigue, loss of muscle mass, and decreased bone density.

Q: How is low testosterone diagnosed?

A: Low testosterone is typically diagnosed through a blood test that measures the level of testosterone in the body.

Q: How is low testosterone treated?

A: Treatment options for low testosterone include hormone replacement therapy, diet and lifestyle changes, and medication to address underlying medical conditions.

Q: Can low testosterone affect women?

A: While testosterone is primarily associated with male physiology, women also produce testosterone and can experience symptoms of low testosterone. These symptoms may include decreased sex drive, fatigue, and decreased muscle mass.

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