Low testosterone, also called hypogonadism, is a common condition that can affect energy, mood, sexual health, and overall well-being. At Cape Fear Valley Health, our clinicians provide thorough evaluations and personalized care plans to help you understand your levels, identify underlying causes, and choose effective treatments. Learn what low testosterone is, how it is diagnosed, and the options available to help you feel your best.
Overview of Low Testosterone
Testosterone is a hormone produced primarily in the testes that supports sexual function, muscle and bone strength, red blood cell production, metabolism, and mood. Low testosterone (hypogonadism) occurs when levels fall below what the body needs to function optimally.
Normal testosterone levels vary by age and time of day. In adult men, morning total testosterone typically ranges from about 300 to 1,000 ng/dL, with levels gradually declining with age. A confirmed morning total testosterone below the lower reference range, combined with compatible signs such as low testosterone symptoms in male patients, supports a diagnosis of hypogonadism.
There are two main types of hypogonadism. Primary hypogonadism originates in the testes when they do not produce enough testosterone despite adequate stimulation. Secondary hypogonadism results from reduced signaling by the pituitary or hypothalamus. Age-related decline is common and may be influenced by chronic illness, medications, and lifestyle factors.
Testosterone influences multiple body systems, including sexual health (libido and erectile function), musculoskeletal strength and bone density, metabolic health (fat distribution and insulin sensitivity), and mental health (mood, motivation, cognitive function). Low levels can affect one or many of these areas and often present as symptoms for low testosterone in men.
Signs, Symptoms, and Causes of Low Testosterone
Common symptoms include:
- Low sex drive and reduced morning erections
- Erectile dysfunction
- Fatigue and decreased stamina
- Depressed mood, irritability, or reduced motivation
- Loss of muscle mass and strength
- Increased body fat or weight gain
Less obvious signs may include decreased bone density or fractures, difficulty concentrating, sleep disturbances such as sleep apnea, and anemia that reduces endurance. Some men notice less frequent shaving and reduced body hair. These changes are common low testosterone in male symptoms and can progress if not addressed.
Causes and risk factors are varied. Aging is the most common contributor, but chronic illnesses (diabetes, obesity, kidney or liver disease), certain medications (opioids, steroids, some antidepressants), pituitary disorders or tumors, head trauma, testicular injury or infection, and genetic conditions can play a role. Lifestyle factors such as poor sleep, alcohol misuse, and physical inactivity can worsen symptoms and lower levels. Understanding low testosterone symptoms in male populations helps clinicians pinpoint contributing factors.
Diagnosis and Testing for Low Testosterone
Evaluation begins with morning total testosterone testing, ideally between 7 and 10 a.m. Because levels fluctuate, a repeat measurement on a different morning is recommended to confirm low values. If results are borderline or symptoms persist, measuring free testosterone and sex hormone–binding globulin (SHBG) can clarify bioavailable hormone levels.
Additional laboratory tests help identify the cause:
- LH and FSH to differentiate primary from secondary hypogonadism
- Prolactin to assess pituitary function
- Iron studies to evaluate for hemochromatosis
- Morning cortisol for adrenal assessment
- Complete blood count and metabolic panel to check for anemia and other abnormalities
- Bone density testing (DEXA) when fracture risk is elevated
If secondary causes are suspected, a pituitary MRI may be indicated.
Clinical assessment includes a detailed medical history, symptom review, and evaluation of medications and supplements. Screening for reversible contributors such as obesity, untreated sleep apnea, thyroid disease, or depression is essential. Your clinician will also discuss fertility goals, as this influences treatment choices. Documenting symptoms for low testosterone in men and correlating them with lab results ensures an accurate diagnosis of low testosterone.
Treatment Options and Management of Low Testosterone
Treatment is recommended when consistently low testosterone levels are confirmed alongside signs that impact quality of life. Goals include alleviating low testosterone in male symptoms, improving sexual function and energy, preserving muscle and bone, and enhancing overall well-being. Testosterone replacement therapy (TRT) can be effective, but it carries risks and is not appropriate for everyone.
Lifestyle and supportive measures can improve testosterone and symptoms, with or without TRT. Focus on weight loss if overweight, resistance and aerobic exercise, adequate sleep, and limiting alcohol. Managing comorbidities such as diabetes, high blood pressure, and sleep apnea can raise testosterone and reduce risks. These steps often lessen low testosterone symptoms in male patients and improve overall health.
If fertility is a priority, TRT may suppress sperm production. Alternatives such as clomiphene citrate, aromatase inhibitors, or gonadotropins can support testosterone and fertility at the same time. Nutritional counseling and stress management also play a role in reducing symptoms for low testosterone in men.
If you suspect low testosterone, schedule an appointment with Cape Fear Valley Health. Our team will guide you through testing, interpret your results, and create a personalized plan aligned with your health goals. Early attention to low testosterone can help you address low testosterone in male symptoms promptly and feel your best.