Symptoms of Low Testosterone

Medically Reviewed by Dr Sravya, MBBS, MS 


The primary anabolic steroid and sex hormone in men is testosterone. Both humans and other animals produce can produce it. The testicles are where males primarily create testosterone. Though in much smaller amounts, testosterone is also produced by women’s ovaries. 

symptoms of low testosterone

Additionally, testosterone affects both sexes’ health and wellbeing in a variety of ways. It has a big impact on things like general mood, cognition, social and sexual behaviour, metabolism and energy output, the cardiovascular system, and osteoporosis prevention. Testosterone is produced by the ovaries and testicles. Your physical and mental health may be impacted by producing either too little or too much testosterone.

The production of testosterone starts to considerably increase throughout puberty and then begins to drop around the age of 30. Here, in this article we will see the introduction of testosterone, functions of testosterone, low testosterone, symptoms of low testosterone, causes of low testosterone, diagnosis of low testosterone, management & treatment of low testosterone, prevention of low testosterone.

Functions of Testosterone:

Low Testosterone:

Low testosterone, or low T, is defined as the hormone with levels below 300 nanograms per deciliter (ng/dL). The Food and Drug Administration specifies a normal range as 300 to 1,000 ng/dL. You can check your amount of circulating testosterone by having a blood test called a serum testosterone test.

If you have low testosterone (male hypogonadism), your testicles don’t produce enough of it. There are numerous potential causes, such as illnesses or trauma that damage your testicles, pituitary gland, or hypothalamus. With testosterone replacement therapy, it is curable.

Male hypogonadism and low testosterone are also known as: –

Your testicles don’t create enough testosterone, the hormone responsible for male sex, if you have low testosterone (male hypogonadism). People who are assigned as male at birth (AMAB) have testicles as their gonads (sex organs). In your testicles, the Leydig cells particularly produce testosterone.

Symptoms of low testosterone:

At different ages, there are various symptoms of low testosterone. As people get older, their levels of testosterone naturally decrease AMAB. This covers transgender people who aren’t receiving feminising hormone therapy, non-binary people, AMAB, and cisgender guys.

Your testicles’ capacity to manufacture and release testosterone is typically regulated by your hypothalamus and pituitary glands. Gonadotropin-releasing hormone (GnRH), which is released by the hypothalamus, causes the pituitary to release luteinizing hormone (LH). The release of testosterone is then stimulated by LH as it travels to your gonads (testicles or ovaries). Follicle-stimulating hormone (FSH), which is also released by the pituitary, promotes the generation of sperm.

Low testosterone, also known as male hypogonadism, can result from any problem with your testicles, brain, or pituitary gland. Men with testicles can develop male hypogonadism, a medical illness that can strike them at any age, from infancy to adulthood.

The following individuals are more susceptible to low testosterone:

According to data, roughly 2% of AMAB individuals may have low testosterone. Additionally, according to other studies, low testosterone affects more than 8% of AMABs between the ages of 50 and 79.

Symptoms of low testosterone in males:

The signs & symptoms of low testosterone might differ greatly depending on age. In adults who were born masculine yet have low testosterone, there are several symptoms that come to mind:

Other low testosterone symptoms in men's include:

There are following symptoms of low testosterone which includes-

Low testosterone level symptoms in children

For children who were given the gender “male” at birth, insufficient testosterone before or throughout puberty can cause following symptoms of low testosterone in children which includes: –

Causes of low testosterone

There are several possible causes of low testosterone. In men, there are two forms of hypogonadism:

Both primary and secondary hypogonadism can have congenital (present at birth) and acquired (acquired later in childhood or adulthood) causes.

Causes of Primary Male Hypogonadism:

When there is a problem with your testicles that prevents them from producing normal levels of testosterone, you have primary hypogonadism. The following congenital disorders can cause primary hypogonadism and have an impact on your testicles:

The following acquired disorders might harm your testicles and cause primary hypogonadism:

Causes of Secondary Male Hypogonadism:

Secondary hypogonadism is brought on by illnesses that alter how your hypothalamus and/or pituitary gland function. Because of the low levels of luteinizing hormone (LH) and follicle-stimulating hormone (FSH), this condition is known as hypogonadotropic hypogonadism. Because of the low levels, testosterone and sperm production are reduced.

Isolated hypogonadotropic hypogonadism, which results in low levels of gonadotropin-releasing hormone from birth, is a congenital disease that can produce secondary hypogonadism.

A uncommon genetic disorder called Kallmann syndrome prevents the growth of nerve cells in your hypothalamus that make gonadotropin-releasing hormone. It may also result in an absence of smell. Hypothalamus dysfunction may result from the rare genetic multisystem condition Prader-Willi syndrome. 

Secondary hypogonadism can develop from a number of acquired disorders, such as:
Diagnosis of low testosterone:

The tests listed below can be used to confirm low testosterone and identify its etiology.

Management and treatment of low testosterone:

Testosterone Replacement Therapy (TRT) used to treat male hypogonadism, or low testosterone, by medical professionals. The testosterone replacement therapy comes in several forms, including:

Prevention of low testosterone:

Medical professionals and researchers are unsure of how to stop low testosterone caused by hereditary disorders or harm to your testicles, hypothalamus, or pituitary gland.

Following a healthy lifestyle can help maintain normal testosterone levels:


According to the American Urological Association, one out of every 100 males suffers from low testosterone. The danger rises with age, despite the fact that most people naturally reduce testosterone as they age. The majority of cases of low testosterone are curable, and being aware of the signs & symptoms can aid in early identification and therapy.