Low Testosterone in Men: Symptoms, Causes, and TRT in Gainesville

Medically reviewed by Gregory J. Bailey, MD, board-certified urogynecologist

The most common low testosterone symptoms are a lower sex drive, erection problems, fewer morning erections, fatigue, low mood, trouble concentrating, and losing muscle while gaining body fat. Stress, poor sleep, and depression can cause the same symptoms, so low T is diagnosed only when symptoms and repeated morning blood tests line up.

That second part matters more than most websites let on. Plenty of men are told they have “low T” after a single test, and plenty of others shrug off real symptoms as getting older. At Well Balanced Healthcare, the conditions we treat include hormone concerns in men as well as women, and we’d rather you understand the whole picture before anyone talks about treatment.

What Does Testosterone Do in Men?

Testosterone is the main male sex hormone. It helps build muscle, keeps bones strong, and supports sex drive and sperm production. The testicles make it, but the brain runs the show: the hypothalamus and pituitary gland send the signals that tell the testicles how much to produce.

Levels naturally drift down with age. According to Cleveland Clinic, testosterone can drop about 1% per year starting in your late 30s. A slow decline is normal. A level low enough to cause symptoms is a different thing, and that’s what doctors call testosterone deficiency or male hypogonadism.

What Are the Symptoms of Low Testosterone?

Sexual symptoms are the most specific signs of low testosterone:

• Lower sex drive than is normal for you
• Fewer morning or spontaneous erections
• Trouble getting or keeping an erection

Other physical signs include:

• Less muscle strength and mass, and less endurance
• More body fat, especially around the middle
• Hot flashes
• Loss of body hair
• Enlarged breast tissue (gynecomastia)
• Smaller testicles
• Difficulty conceiving

Mood and thinking can change too:

• Fatigue and reduced energy
• Low or irritable mood
• Trouble concentrating or remembering things

No single item on this list proves low T. The American Urological Association (AUA) guideline points out that many of these symptoms are non-specific, which is exactly why testing matters.

What Are the Symptoms of Low Testosterone in Your Husband or Partner?

Partners often notice before the man himself does. The changes that tend to show up at home are less interest in sex, being wiped out by mid-afternoon, a shorter fuse, or more weight settling around his middle.

If that sounds familiar, bring it up as a health question, not a performance one. Erection problems in particular deserve a checkup. The National Institute of Diabetes and Digestive and Kidney Diseases lists heart and blood vessel disease, high blood pressure, and diabetes among the causes of erectile dysfunction, so a visit can catch more than a hormone problem.

If you’re researching your own hormone questions too, our post on the signs of hormone imbalance in women covers the other side of the household.

What Else Can Cause the Same Symptoms?

This is the part online testosterone ads skip. According to the AUA, changes in mood, focus, strength, body fat, erections, and sex drive can come from chronic stress, chronic fatigue, or depression rather than low testosterone. Other common look-alikes:

• Poor sleep or untreated sleep apnea, which can also lower testosterone
• Type 2 diabetes and excess weight
• Heart and blood vessel disease, especially when erections are the main problem
• Medications, including opioid pain medicines
• Alcohol use

What Causes Low Testosterone?

Cleveland Clinic notes that most men with symptoms of low testosterone don’t have a problem with their testicles or pituitary gland. The more common drivers are age, obesity and diabetes. Causes fall into two groups.

Problems in the testicles (primary hypogonadism):

• Injury to or removal of a testicle
• An infection that inflames the testicles (orchitis)
• Chemotherapy or radiation
• Genetic conditions such as Klinefelter syndrome

Problems with the brain’s signals (secondary hypogonadism):

• Obesity and type 2 diabetes
• Obstructive sleep apnea
• Long-term opioid use
• Anabolic steroid use
• Pituitary conditions, including high prolactin levels
• Being sick, which can temporarily lower testosterone

How Is Low Testosterone Diagnosed?

A proper diagnosis takes more than a single test. Under the AUA guideline:

• Symptoms or signs come first. Testing men without symptoms (or related conditions) isn’t recommended.
• Two blood tests, both early in the morning. Testosterone runs highest in the morning.
• A total testosterone below 300 ng/dL is the AUA’s reasonable cut-off for low testosterone.
• Follow-up labs look for the cause. These usually include luteinizing hormone (LH) and, in some men, prolactin.

How Is Low Testosterone Treated?

Treatment starts with the basics. Weight loss if you need it, regular physical activity, about seven hours of sleep, treating sleep apnea, and cutting back on alcohol all support healthy testosterone levels. Cleveland Clinic advises skipping over-the-counter “testosterone booster” supplements and seeing a provider instead.

For men with confirmed testosterone deficiency, testosterone replacement therapy (TRT) comes in several forms, including skin gels, injections, and pellets placed under the skin every three to six months. Oral testosterone products exist, but we don’t prescribe hormones by mouth.

At Well Balanced Healthcare, our nurse practitioners prescribe and manage hormones, including Biote pellets. Biote pellets are compounded, and the AUA suggests commercially manufactured testosterone over compounded products when possible, so that’s worth talking through at your visit. You can read how pellet placement works in our hormone pellet therapy guide.

What can TRT realistically do? The AUA says men should be told it may improve erectile function, sex drive, anemia, bone density, lean muscle, and depressive symptoms. It also says the evidence is inconclusive on energy, fatigue, thinking, and overall quality of life. We won’t promise more than that, but many of our patients find testosterone replacement therapy significantly improves their quality of life.

Is Testosterone Replacement Therapy Safe?

For the right man with careful monitoring, TRT can be a reasonable option, but it isn’t risk-free.

• Heart health. In 2025 the FDA updated testosterone labeling after the TRAVERSE trial found no increase in major cardiovascular events in men treated for hypogonadism. The same update added a class-wide warning that testosterone products can raise blood pressure.
• Thicker blood. Testosterone can raise red blood cell counts, which is why hematocrit is checked before and during treatment.
• Fertility. Testosterone can suppress sperm production. The AUA says it should not be prescribed to men who are currently trying to conceive.
• Skin transfer. Gels can rub off on partners and children, so they need careful handling.
• Who may not be a candidate. Men with prostate or breast cancer, an untreated prostate lump, poorly controlled blood pressure, unmanaged heart failure, untreated sleep apnea, or a recent heart attack or stroke.

Monitoring is part of the deal. The AUA recommends checking testosterone every 6 to 12 months on therapy, and discussing stopping at three to six months if levels are normal but symptoms haven’t improved.

When Should You See a Doctor About Low T Symptoms?

Get emergency care (call 911) for chest pain, shortness of breath, or sudden swelling and pain in one leg. If you’re having thoughts of harming yourself, call or text 988.

Get checked promptly for:

• A lump or change in a testicle
• A lump in the breast tissue
• New changes in your side vision along with other low T symptoms, which can point to a pituitary problem

Book a regular visit when symptoms have lasted more than a few weeks and are affecting your energy, mood, relationship, or work. If you and your partner are trying to have a baby, talk to a provider before trying any testosterone product.

Frequently Asked Questions

How do I fix my low testosterone?

Start by confirming it’s actually low, with two early-morning blood tests and a look at your symptoms. Then address anything that could be lowering it, such as excess weight, poor sleep, sleep apnea, alcohol, or certain medications. If testosterone stays low and symptoms persist, TRT is an option to discuss with a provider who will monitor you.

How can I naturally increase my testosterone levels?

Healthy weight, regular exercise, about seven hours of sleep, treating sleep apnea, and limiting alcohol and other substances all support normal testosterone levels. These steps won’t fix a testicular or pituitary problem, but for many men they’re the right first move. Skip over-the-counter boosters, which aren’t a substitute for an evaluation.

Why don’t doctors like to prescribe testosterone?

Many careful clinicians hesitate because low T symptoms overlap with stress, depression, and poor sleep, and because testosterone can have real side effects, including effects on fertility, red blood cells, and blood pressure. Guidelines ask for both confirmed low levels and symptoms before treatment.

How long does TRT take to work?

It varies from man to man. Guidelines recommend rechecking your testosterone level after starting treatment and reviewing your symptoms within three to six months. If your level is back in range but you don’t feel better by then, the AUA recommends talking about whether to stop.

Can testosterone therapy affect fertility?

Yes. Testosterone from outside the body can suppress your own sperm production, so it shouldn’t be used by men who are trying to conceive. If you want children in the future, say so before starting treatment so your provider can factor it into the plan.

Talk With Our Nurse Practitioners in Gainesville

If these symptoms sound like you, or like someone you love, a confidential evaluation is a good place to start. Our nurse practitioners see men from Gainesville and across North Central Florida, and our hormone replacement therapy page outlines the care we provide for men and women.

Well Balanced Healthcare is at 6440 W Newberry Rd #409, Gainesville, FL 32605. Call (352) 333-6161, Monday through Friday, 8 am to 5 pm, or request an appointment online.