Testosterone Therapy and Depression: The Link

Medically reviewed by: Katelyn Schwartz, NP, Family Nurse Practitioner with Advanced Training in TRT, BHRT, and Menopause Care
Last reviewed: September 2026

Testosterone replacement therapy (TRT) has gained significant attention as a treatment for men dealing with low testosterone levels. Many individuals seek TRT to enhance their physical and mental health, but this has led to inquiries about possible side effects, especially regarding mental well-being. A key issue that emerges is the potential link between Testosterone Therapy and Depression. To explore this, we must examine the complex interplay between hormones and mental health, with a particular emphasis on testosterone’s influence.

Explore Managing Fatigue with TRT.

Testosterone Therapy and Depression: The Short Answer

There is a real link between testosterone therapy and depression, but it is narrower than it is usually described. In men with blood-confirmed low testosterone and mild depressive symptoms, testosterone therapy produces a small to moderate improvement in mood. It is not a treatment for major depressive disorder, and the Endocrine Society advises against prescribing it for that purpose alone.

Low testosterone and depression share almost the same symptom list: flat mood, lost drive, fatigue, poor concentration, weight gain, and reduced libido. A 2023 review in Frontiers in Endocrinology reports depressive symptoms in 35% to 50% of men with diagnosed hypogonadism. That overlap is why one gets mistaken for the other. The order of operations matters more than the treatment choice. A morning blood test tells you which one you are dealing with, and treating the wrong one costs months.

What is Testosterone Replacement Therapy?

Explanation of TRT

Replacement testosterone therapy is a medical intervention aimed at replenishing or substituting the testosterone that the body fails to produce adequately. This hormone plays a crucial role in numerous bodily functions, such as promoting muscle development, maintaining bone strength, and regulating sexual desire. The primary goal of testosterone therapy for men is to bring testosterone levels back to a healthy range, thereby alleviating the symptoms linked to testosterone deficiency.

Why is TRT Prescribed?

TRT is often recommended for men suffering from hypogonadism, a condition marked by insufficient testosterone levels. Individuals with hypogonadism may experience a variety of symptoms, including fatigue, diminished sexual drive, mood swings, and loss of muscle mass. By delivering testosterone through methods like gels, injections, or patches, TRT effectively targets these issues, enhancing the overall quality of life for those affected.

Common Uses of TRT

In addition to treating hypogonadism, TRT therapy may also be utilized in specific instances of delayed puberty, and it is sometimes prescribed off-label to manage age-related symptoms. However, the application of TRT in older men or those without a definitive medical indication is a topic of debate, primarily due to the potential risks and side effects associated with the treatment.

Does Testosterone Replacement Therapy Really Work?

The Link Between Testosterone and Mood

Role of Testosterone in Mood Regulation

Testosterone is essential for maintaining a balanced mood. It affects neurotransmitters such as serotonin, which are vital for promoting feelings of happiness and overall well-being. When testosterone levels are in harmony, they help foster a stable mood and an optimistic perspective.

How Low Testosterone Levels Affect Mental Health

Conversely, low testosterone levels can trigger a range of mental health challenges, including mood fluctuations, irritability, and depression. Men experiencing low testosterone frequently describe feelings of exhaustion, diminished motivation, and emotional distress. This relationship highlights the significance of understanding the mental health implications of replacement testosterone therapy.

Symptoms of Low Testosterone

The effects of low testosterone extend beyond physical symptoms like decreased muscle mass and increased fat. They also encompass cognitive and emotional challenges, such as difficulties with memory, trouble focusing, and ongoing feelings of sadness or despair, which can greatly affect everyday life.

Because the two symptom lists overlap so closely, it is worth reading through the common symptoms of low testosterone before assuming low mood is the whole picture.

TRT and Mental Health: What Testosterone Therapy Can and Cannot Do

Testosterone therapy is not a mental health treatment. Where it helps mental health, it does so by correcting a hormone deficiency that was producing symptoms that look like depression. Three findings frame it honestly.

Mild depressive symptoms with low testosterone confirmed. Mood usually improves. A 2019 meta-analysis in JAMA Psychiatry pooled 27 randomized trials and 1,890 men and found a moderate benefit over placebo.
Major depressive disorder. No reliable benefit. Reviews of the same literature find no significant effect across the spectrum of major depression. That is why guidelines stop short of recommending it there.
Depression with normal testosterone. Testosterone therapy is not the answer, and starting it can delay treatment that would work. The Canadian Urological Association guideline is explicit here. Depression, thyroid disease, and sleep disorders should be ruled out in men who have the symptoms but normal blood levels.

One 2025 result complicates that picture. A study in The Journals of Gerontology followed 4,107 men aged 70 and over for a median of 8.4 years. It found no association between testosterone concentration and the risk of developing depression, before or after adjustment. Low testosterone is not a reliable predictor of who becomes depressed, even though the two travel together in men who already have both.

Understanding Depression

What is Depression?

Depression is a multifaceted mental health condition marked by ongoing feelings of sadness, despair, and a disinterest in activities that once brought joy. It impacts millions of individuals globally and can stem from a range of factors, including genetics, environmental influences, and hormonal changes.

Symptoms and Diagnosis of Depression

Typical signs of depression encompass a consistently low mood, exhaustion, alterations in sleep habits, trouble focusing, and thoughts of self-harm or suicide. A proper diagnosis usually requires a thorough assessment by a healthcare provider, taking into account both physical and mental health aspects.

Common Causes of Depression

Various elements can trigger depression, such as significant life stressors, chronic health issues, or a family background of mental health challenges. Additionally, hormonal fluctuations, particularly those related to testosterone, can significantly contribute to the development of depression.

Can TRT Cause Depression?

Analyzing the Connection Between TRT and Depression

The connection between replacement testosterone therapy and depression is complex. While some men experience enhanced mood and a decrease in depressive symptoms after initiating TRT therapy, others may find their mental health deteriorating. This variation prompts an investigation into the factors that affect individual responses to TRT.

Research Findings on TRT and Mood Changes

The findings surrounding TRT’s impact on mood are varied. Placebo-controlled trials show small improvements in mood and energy in men whose testosterone is genuinely low. Anxiety has been studied far less, and the evidence is not strong enough to count it as a benefit. Conversely, other research suggests that TRT might intensify mood fluctuations or trigger depressive symptoms, particularly if testosterone levels rise excessively.

Potential Psychological Side Effects of TRT

Testosterone hormone replacement therapy can lead to several psychological side effects, such as irritability, anxiety, and mood swings. In some instances, an overabundance of testosterone from the treatment may contribute to or aggravate depression. These potential side effects highlight the necessity for diligent monitoring by healthcare professionals throughout replacement testosterone therapy.

Hormonal Imbalances and Mood Swings

How Hormonal Changes Can Lead to Mood Swings

Hormones such as testosterone are essential for mood regulation. Changes in hormone levels, whether they occur naturally or as a result of treatments like testosterone hormone replacement therapy, can lead to notable shifts in mood, manifesting as irritability, anger, or even depression.

Impact of Hormonal Fluctuations During TRT

When undergoing testosterone therapy for men, the body experiences adjustments in hormone levels, which can create temporary imbalances. These fluctuations may result in mood swings or depressive feelings for some individuals. It’s important to be aware of these changes and seek guidance from a healthcare professional when necessary.

Recognizing Mood Changes During TRT

Men receiving TRT therapy should pay close attention to any alterations in their mood or mental well-being. Sudden episodes of sadness, irritability, or anxiety should be taken seriously, as they may signal that the body is struggling to adapt to the treatment.

Factors That May Influence Depression During TRT

Pre-existing Mental Health Conditions

Men who have previously dealt with mental health challenges like depression or anxiety may find themselves more vulnerable to mood fluctuations during replacement testosterone therapy. The hormonal changes associated with TRT therapy can intensify these existing conditions.

Incorrect Dosage or Administration of TRT

Administering the wrong dosage or method of testosterone therapy for men can disrupt hormone balance, potentially leading to an increase in depressive symptoms. TRT must be customized to fit the individual’s specific requirements and to be monitored closely to prevent complications.

Individual Differences in Response to TRT

Responses to testosterone hormone replacement therapy can vary widely among individuals. While some may notice a marked improvement in their mood, others might experience a decline in their mental well-being. This variability highlights the importance of creating tailored treatment strategies.

How Long Before Mood Changes on Testosterone Therapy

Mood responds earlier than the physical changes people are usually waiting for. A timing review in the European Journal of Endocrinology puts the first detectable effect on depressive mood at three to six weeks. The maximum effect comes much later, at 18 to 30 weeks. Sexual interest moves faster, appearing at about three weeks and plateauing by six. Erections can take up to six months.

Two practical consequences follow. A mood that has not shifted at all by week six is worth raising at your review rather than waiting it out. Mood that improves at week four is not the full effect yet, so dose decisions made that early are premature.

Managing Mental Health While on TRT

Monitoring Mood and Mental Health Regularly

It’s essential for men undergoing testosterone replacement therapy to regularly assess their mood and mental well-being. By monitoring any fluctuations and discussing them with a healthcare professional, adjustments to the treatment can be made as necessary.

Working Closely with a Healthcare Provider

Establishing a solid relationship with a healthcare provider is vital for effectively managing TRT. Frequent check-ins and transparent discussions about any issues, particularly those related to mental health, can help ensure that the therapy remains both safe and beneficial.

Importance of Mental Health Support

For men on TRT, seeking mental health support, such as counseling or therapy, can be incredibly helpful. Having a professional to confide in regarding mood shifts or emotional challenges can offer an extra layer of reassurance and guidance.

Mood belongs on the monitoring list at every review, alongside red blood cell count and hormone levels. That schedule is part of how TRT in Vancouver is run at Beyoung Health, and it is what separates a prescription from treatment.

Alternative Treatments to Testosterone Therapy and Depression

Non-TRT Treatments for Low Testosterone

If you’re wary of the mental health implications associated with testosterone replacement therapy, there are various alternative treatments to consider. Prescription approaches also exist that work by stimulating the body’s own testosterone production rather than replacing the hormone. They suit a different group of men, particularly those who want to preserve fertility. The choice between the two routes belongs to a prescriber after blood work.

Lifestyle Changes to Boost Testosterone Levels Naturally

Diet, regular exercise, better sleep, and weight loss all support healthy testosterone production. In men whose levels are borderline, they can make a real difference. They do not reliably correct a confirmed deficiency, and they are not a reason to put off a blood test.

Psychological Therapies for Managing Depression

For individuals dealing with depression, therapeutic interventions like cognitive-behavioral therapy (CBT) can prove to be very beneficial. These approaches tackle the underlying issues contributing to depression and can complement or serve as an alternative to testosterone therapy for men.

When to Seek Help

Signs That You Should Consult a Doctor

If you or someone close to you is experiencing significant mood fluctuations, depression, or anxiety while undergoing TRT therapy, it is vital to consult a healthcare provider. Ongoing feelings of sadness, disinterest in everyday activities, or thoughts of self-harm are critical signals that professional intervention is necessary.

How to Discuss TRT-Related Depression with Your Doctor

Maintaining an open dialogue with your healthcare provider is crucial if you believe TRT is impacting your mental health. Be candid about your symptoms and worries, and inquire about potential modifications to your treatment regimen.

Available Resources for Mental Health Support

A variety of resources are available for individuals grappling with depression, including hotlines, support groups, and online communities. These options can offer immediate assistance and continuous support during challenging periods.

Men in Ontario can start the same way, through TRT in Toronto, with blood work first and a treatment decision after.

Balancing Benefits and Risks of TRT

Pros and Cons of TRT

Testosterone hormone replacement therapy can bring notable advantages, such as heightened energy levels, better mood stability, and improved athletic performance. Nevertheless, it’s essential to balance these advantages with potential drawbacks, including the risk of depression.

Assessing the Risk-Benefit Ratio

Before initiating TRT, it’s vital to evaluate the risk-benefit balance. Engage in a conversation with your healthcare professional to determine if the potential gains from TRT justify the risks, especially regarding mental health.

Find Out Whether Low Testosterone Is Part of the Picture

A morning blood test settles the question this whole subject turns on. Book a consultation with Beyoung.Health in Vancouver. A Nurse Practitioner will review your symptoms, order the right panel, and tell you plainly whether testosterone is involved.

Future Research on Testosterone Therapy and Depression

Current Gaps in Research

Although there is substantial knowledge surrounding TRT therapy, significant gaps remain, particularly regarding its long-term implications for mental health. Additional research is necessary to gain a comprehensive understanding of how TRT influences mood and to identify individuals who may be more susceptible to depression.

What Future Studies Might Reveal

Upcoming studies could shed light on the relationship between testosterone therapy for men and depression, potentially leading to more personalized treatment options that reduce risks while enhancing benefits.

Importance of Ongoing Monitoring and Research

As with any medical intervention, continuous monitoring and research are essential. This approach ensures that TRT therapy remains both safe and effective, allowing for the timely identification and management of any side effects, including depression.

Testosterone Therapy and Depression: Final Words

Testosterone therapy relieves the symptoms of a confirmed deficiency, and for some men that includes a lift in mood. The mental health benefit is real but modest, and it depends on the deficiency being real in the first place.

Nevertheless, akin to any medical intervention, it carries inherent risks. While some men may experience improved mood and reduced depression, others might find that TRT exacerbates their mental health issues. It’s essential to approach TRT with a full understanding of its potential effects, working closely with healthcare providers to monitor mood changes and adjust treatment as necessary. Ultimately, the decision to undergo TRT should be made with careful consideration of both its benefits and risks.

Testosterone Therapy and Depression: FAQs

Q: Can TRT help improve mood?

Sometimes, and the effect is modest rather than dramatic. In men whose low testosterone is confirmed by blood work, testosterone therapy produces small but measurable improvements in mood, energy, and depressive symptoms. In the Testosterone Trials, the largest set of placebo-controlled trials in older men, the effects on mood and on depressive symptoms were statistically real but small. The authors reported as much in Endocrine Reviews. Testosterone therapy is not a substitute for treatment of major depression.

Q: What are the most common side effects of TRT?

The common ones are acne or oily skin, fluid retention, a rise in red blood cell count, and worsening of sleep apnea that was already present. Red blood cell count is the one that needs routine blood monitoring, because it can climb quietly. Cardiovascular risk has been the long-running worry. The largest evidence synthesis to date is the 2024 TestES review of 35 randomized trials. It did not find a relationship between testosterone replacement therapy and cardiovascular or cerebrovascular events over the short to medium term.

Q: How long does it take for TRT to affect mood?

Effects on mood become detectable after three to six weeks. They reach their maximum between 18 and 30 weeks, according to timing work in the European Journal of Endocrinology. Sexual interest responds faster, at around three weeks. Physical changes take the longest. If nothing at all has shifted by week six, that is a conversation to have at your review rather than a reason to wait longer.

Q: Can stopping TRT cause depression?

Stopping testosterone therapy usually brings back the symptoms it was treating, and low mood can be one of them. That return is not the same thing as withdrawal. The severe depressive episodes and suicidal thinking described in the literature come from people coming off large non-medical doses. A 2026 review in Frontiers in Endocrinology puts those doses at 500 to 5,000 mg a week, against 50 to 250 mg a week for supervised replacement. Either way, stopping is something to plan with your prescriber, because your own production takes time to restart.

Q: What should I do if I feel depressed while on TRT?

Tell your prescriber, and do not stop on your own. Several possibilities need working through: a dose that is too high or too low, an untreated sleep problem, a depression that was always there, or a cause unrelated to hormones. Blood work plus a proper mood assessment is what separates them. If you are having thoughts of harming yourself, call or text 9-8-8, the Suicide Crisis Helpline, available across Canada at any hour.

The information here is general and is not a substitute for individual medical advice. Testosterone therapy is a prescription treatment that requires blood testing before it starts and monitoring while it continues. Speak with a licensed clinician about your own situation. If you are in distress or thinking about harming yourself, call or text 9-8-8, the Suicide Crisis Helpline, available across Canada at any hour.

References

Indirli R, Lanzi V, Arosio M, Mantovani G, Ferrante E. The association of hypogonadism with depression and its treatments. Frontiers in Endocrinology. 2023;14:1198437. https://doi.org/10.3389/fendo.2023.1198437
Walther A, Breidenstein J, Miller R. Association of testosterone treatment with alleviation of depressive symptoms in men: a systematic review and meta-analysis. JAMA Psychiatry. 2019. https://jamanetwork.com/journals/jamapsychiatry/fullarticle/2712976
Snyder PJ, Bhasin S, Cunningham GR, et al. Lessons from the Testosterone Trials. Endocrine Reviews. 2018;39(3):369-386. https://doi.org/10.1210/er.2017-00234
Bhasin S, Brito JP, Cunningham GR, et al. Testosterone therapy in men with hypogonadism: an Endocrine Society clinical practice guideline. Journal of Clinical Endocrinology and Metabolism. 2018;103(5):1715-1744. https://doi.org/10.1210/jc.2018-00229
Grober ED, Krakowsky Y, Khera M, et al. Canadian Urological Association guideline on testosterone deficiency in men: evidence-based Q&A. Canadian Urological Association Journal. 2021;15(5):E234-E243. https://www.cua.org/system/files/Guideline-Files/7252_v6.pdf
Forbes M, Lotfaliany M, Tran C, et al. Testosterone concentration and incident depression in older men: a longitudinal cohort study. The Journals of Gerontology: Series A. 2025;80(6):glaf019. https://doi.org/10.1093/gerona/glaf019
Cruickshank M, Hudson J, Hernández R, et al. The effects and safety of testosterone replacement therapy for men with hypogonadism: the TestES evidence synthesis and economic evaluation. Health Technology Assessment. 2024;28(43). https://doi.org/10.3310/JRYT3981
Saad F, Aversa A, Isidori AM, Zafalon L, Zitzmann M, Gooren L. Onset of effects of testosterone treatment and time span until maximum effects are achieved. European Journal of Endocrinology. 2011;165(5):675-685. https://doi.org/10.1530/EJE-11-0221
Lisman D, Kowalik K, Harasny P, et al. Non-medical use of exogenous testosterone and anabolic-androgenic substances in young men: health, psychological, and fertility consequences. Frontiers in Endocrinology. 2026;17:1781416. https://doi.org/10.3389/fendo.2026.1781416
9-8-8: Suicide Crisis Helpline. https://988.ca/