What Causes Low Testosterone in Men?

Men sometimes experience a variety of vague symptoms that seem unrelated to their feelings of being generally healthy. In many cases, the problem may be reduced production of the male hormone, testosterone. This condition can even cause low testosterone in 20’s that causes troublesome symptoms. Here are a few of the common signs of low testosterone that should prompt a visit to the doctor to correct the problem.

What Is Low Testosterone?

Testosterone is the hormone that produces the male sexual characteristics, such as facial hair, increased muscle mass, physical energy and sex drive. A number of health issues can occur that cause reduced production of testosterone, which can result in symptoms that affect the way men look and feel. Some individuals may experience low testosterone in 20s, with symptoms that become more pronounced as the years pass. Physicians can administer testing to detect low levels of testosterone, so that proper treatment can be provided.

low testosterone

Reduced Muscle Mass

Inadequate testosterone production of testosterone can cause reduced muscle mass that can affect your ability to perform in daily life. You may notice less definition in your muscles or lowered muscle strength. Treatment for low testosterone can help to improve this issue.



Fatigue can be a symptom of many different illnesses, but it can also occur when testosterone levels are too low. Men may find they have less energy to get through the day and may be disinclined to do after-work activities. A thorough examination and testing can determine the cause of the problem.


The lack of sufficient testosterone and reduced muscle mass can lead to increasing weight gain and obesity. Lack of energy and fatigue that often occurs with the condition can make weight gain worse. That inability to lose weight in younger men could be a sign of low testosterone in 20’s that is undiagnosed.

Changes in Hair Growth

Men may notice a lessening of body hair and slower beard growth, as a result of their low testosterone levels. This can be a disturbing symptom for some men. If you have a noticeable difference in the amount of body hair or have slow growth of facial hair, it may be because of low testosterone levels.

Erectile Dysfunction

Men who develop problems with sexual function should make an appointment with these doctors for a thorough physical examination with blood testing to ensure that there is no disease condition that is causing the problem. Low testosterone levels may be discovered and treated to help erectile dysfunction.

Reduced Testicular Size

Another symptom men may notice is a reduction in the size of their testicles. This decrease in size generally occurs with temperature changes and can be an effect of normal aging. However, low testosterone levels can also cause this effect.

Depression or Mood Changes

Low testosterone levels can also lead to feelings of depression. Some men experience mood changes, such as unusual irritability, sleep problems or poor mental focus. These symptoms are a result of diminished testosterone that affect brain chemistry.

Low testosterone level is a condition that can be corrected with proper treatment. If you are experiencing some of the symptoms of this condition, make an appointment with your doctor to learn about solutions that will help you to improve your symptoms.

What is Considered “Very Low” Testosterone?

While a level below 300 nanograms per deciliter (ng/dL) is considered having lower than normal testosterone, a very low testosterone level would be one that sinks below 100.  According to EveryDayHealth, if you were to surgically remove your testicles, your levels will drop by over 90%, all in a 24 hour period.  Just think, in one day, you can basically lose your manly powers!

An additional way that could cause you to reach these almost unbelievable numbers would be to consume drugs that would block the testosterone production.  Men being treated with prostate cancer with an ADT were surveyed, and after a period of six months, 25 out of the 153 participating men had a level of testosterone below 20 ng/dL.  This was a study published in the Clinical Genitourinary Cancer journal.

Low Testosterone Treatment Options

There are many ways a man can go about fixing his low testosterone, but the most popular is the testosterone replacement therapy injections.  While these were never my cup of tea, many men swear by them.  If you click the link above you’ll be led to a page full of pro’s and con’s that you can weigh yourself and find out if that’s the route you want to take.

Alternate methods that I recommend you check out are eating to increase testosterone.  If you consume the right foods that contain the proper nutrients your body needs, you can essentially increase your t levels in a very simple way – eating.  You have to eat to keep your body fueled up with energy, so you may as well change your diet to eat foods that are going to help solve your low testosterone problem.

testosterone therapy

Another easy way to address a low t level is taking natural supplements.  There are many brands for sale that you can purchase, including Nugenix pills, Testo Fuel, and PrimeMale, to name a few in a market full of 100’s, if not 1,000’s of brands that could potentially mislead you. Most of these supplements will contain ingredients backed by science that will help you increase T production.  Stuff like zinc, d-aspartic acid, nettle root, and even boron which helps treat ED.