You are standing in the grocery store, or maybe finishing a meeting, when it happens: a sudden, intense wave of heat rises through your chest and neck, your face flushes, and sweat breaks out across your upper body. The whole episode lasts a few minutes, then fades, leaving you slightly chilled and more than a little confused. You have heard of hot flashes, but you thought that was a women’s issue. So what is happening?
Hot flashes in men are more common than most people realize, and they have real, identifiable causes. While they are frequently linked to a specific medical treatment for prostate cancer, anxiety, stress, and several other factors can also trigger the same physical response. Understanding what is actually driving your symptoms puts you in the best possible position to address them.
What Are Hot Flashes in Men?
A hot flash, also called a vasomotor symptom, is a sudden feeling of intense warmth that is not caused by anything in the external environment. It originates from within the body, typically when the brain’s temperature-regulating center, the hypothalamus, misfires and triggers a cascade of heat-dissipation responses. The result is a rapid redistribution of blood flow toward the skin, sweating, and flushing (Mayo Clinic, 2020).
In men, the physical experience closely resembles what women describe during menopause. Symptoms typically include a sudden wave of warmth spreading through the chest, neck, and face; blotchy reddening or flushing of the skin; increased heart rate; profuse sweating, often concentrated on the upper body; and a brief chill once the episode passes. Some men also describe a sense of unease or heightened alertness during a flash, which can make it easy to confuse with the early stages of a panic attack.
Hot flashes in men are genuinely underdiagnosed because neither men nor their doctors tend to think of vasomotor symptoms as a male health issue. Many men dismiss them as overheating or assume something is seriously wrong with their heart. In reality, a hot flash is a vascular event, not a cardiac one, though it is always worth ruling out cardiovascular causes with your doctor.
What Causes Hot Flashes in Men?
Unlike in women, where hot flashes are most directly tied to the hormonal shifts of menopause, hot flashes in men typically arise from a short list of specific causes. Identifying your cause matters because treatments differ depending on the underlying driver.
Androgen Deprivation Therapy
By far the most well-documented cause of hot flashes in men is androgen deprivation therapy, or ADT, which is used to treat prostate cancer. ADT works by drastically reducing testosterone levels in the body, either through medication (GnRH agonists or antagonists) or through surgical removal of the testes. When testosterone drops sharply, estradiol levels fall as well, and it is this rapid drop in estradiol that most directly disrupts hypothalamic temperature regulation (Taylor et al., 2016).
Research consistently shows that approximately 70% to 80% of men who undergo ADT will experience hot flashes, and for many, the flashes are frequent and disruptive enough to significantly affect quality of life (Casey et al., 2012). A 2009 study found that men undergoing ADT who experienced hot flashes showed persistently elevated levels of psychological distress and anxiety compared to those who did not, and that hot flashes appeared to maintain that distress rather than simply co-occur with it (Cherrier et al., 2009). Men dealing with ADT-associated hot flashes are not imagining the toll those episodes take on their emotional well-being.
Low Testosterone From Other Causes
Outside of ADT, hypogonadism, a medical condition in which the body does not produce adequate testosterone, can also cause vasomotor symptoms in men. A key PMC study found that vasomotor symptoms in hypogonadal men are primarily driven by estradiol deficiency rather than testosterone deficiency alone, which parallels the mechanism seen in menopausal women (Taylor et al., 2016). Conditions such as Klinefelter syndrome, hypopituitarism, or damage to the testes from infection or injury can suppress testosterone and estradiol to levels low enough to trigger hot flashes.
It is worth being clear about what normal testosterone decline does not do. Testosterone drops gradually in healthy men at about 1% to 2% per year after age 30, and most men retain enough testosterone to keep estradiol well above the threshold associated with vasomotor symptoms (Wu et al., 2008). The concept of “male menopause” as a hormonal event comparable to what women experience is not supported by the clinical evidence. When a healthy middle-aged man has hot flashes, hormonal decline from normal aging is rarely the direct cause.
Anxiety and the Stress Response
Anxiety is one of the most frequently overlooked explanations for hot flash-like episodes in men who are not receiving ADT and do not have hypogonadism. The overlap between anxiety symptoms and vasomotor symptoms is substantial enough that distinguishing one from the other without careful evaluation can be genuinely difficult.
When the body perceives a threat, real or imagined, the sympathetic nervous system activates the fight-or-flight response. Adrenaline and noradrenaline flood the system, heart rate rises, blood vessels near the skin dilate, and sweating begins as the body prepares for action. This cascade feels almost identical to a hot flash: sudden warmth, flushing, racing heart, and sweating, followed by a mild chill as the adrenaline clears (Harvard Health, 2018). A systematic review on thermosensation and thermoregulation in anxiety disorders confirmed that anxiety can directly alter the body’s perception of and response to temperature, making anxious individuals more prone to feeling hot and flushed (Fischer et al., 2021).
For men in midlife, anxiety often takes on a specific character. The pressures of career evaluation, relationship changes, caring for aging parents, shifts in physical capacity, and concerns about health and mortality can accumulate into what clinicians describe as midlife anxiety. This is not a formal DSM-5 diagnosis but a recognized pattern in which stressors cluster at a particular life stage and produce significant psychological and physical symptoms (Beutel et al., 2010).
Research has also found a bidirectional relationship between cortisol, the body’s primary stress hormone, and vasomotor symptoms. Higher salivary cortisol levels have been associated with more frequent and severe hot flashes, and perceived stress was a significant predictor of vasomotor symptom intensity even after adjusting for other variables (Daley et al., 2017). In other words, stress does not just feel like a hot flash. It actively makes hot flashes more likely and more severe.
Other Medical Conditions
Several medical conditions beyond hormonal and psychological causes can trigger episodes that resemble hot flashes in men. These include carcinoid tumors, which release hormones that cause flushing; pheochromocytoma, an adrenal gland tumor that produces surges of adrenaline; hyperthyroidism, in which an overactive thyroid raises body temperature and heart rate; and certain medications, including calcium channel blockers and opioids, which can produce flushing as a side effect. These are less common than anxiety or ADT, but they are important to consider when a man has no obvious hormonal or psychological explanation for his symptoms.
Lifestyle Factors
Certain lifestyle patterns raise baseline body temperature, amplify the stress response, or interfere with thermoregulation, making hot flashes more likely and more severe. Alcohol, particularly in large quantities, causes vasodilation and flushing. Caffeine, especially in high doses, activates the sympathetic nervous system and can trigger sweating and rapid heart rate. Smoking has been linked to vasomotor symptoms in multiple studies, likely through its effects on cardiovascular function. Poor sleep and a sedentary lifestyle both raise cortisol and lower the body’s tolerance for temperature fluctuations. Obesity contributes to heat retention and is independently associated with vasomotor symptoms in men.
How Anxiety and Hot Flashes Reinforce Each Other
One reason hot flashes and anxiety are so intertwined in men is that they can feed each other. A man who experiences an unexpected hot flash, particularly one who does not understand what it is, may become anxious about it. That anxiety then activates the sympathetic nervous system, which raises body temperature and can trigger another flash. Over time, the anticipation of a hot flash can itself become a source of enough anxiety to provoke one.
This feedback loop is clinically significant because breaking it requires addressing both the physical symptoms and the psychological response to them. A man who manages his anxiety effectively will often find that his vasomotor episodes become less frequent and less intense, even without any hormonal intervention.
When to Talk to Your Doctor
While many causes of hot flashes in men are manageable with lifestyle changes and mental health support, some warrant prompt medical evaluation. See your doctor if your hot flashes are frequent, severe, or worsening over time; if they are accompanied by unexplained weight loss, night sweats that drench your clothing and bedding, persistent fatigue, or heart palpitations; if you have a history of prostate cancer or are currently receiving any cancer treatment; or if you have noticed other signs of low testosterone such as decreased libido, difficulty concentrating, or loss of muscle mass.
Your doctor will likely order blood work including a testosterone panel, thyroid function tests, and possibly additional hormonal and metabolic markers. A thorough history of any medications you take is also important, since drug-induced flushing is often the simplest explanation and the easiest to resolve.
Treatment Options for Hot Flashes in Men
The most effective treatment depends on the underlying cause. For men on ADT, there is meaningful clinical evidence supporting several interventions. For men whose hot flashes are anxiety-driven, behavioral and pharmacological approaches targeting anxiety tend to produce the most relief.
Medical Treatments for ADT-Related Hot Flashes
Gabapentin, an anticonvulsant also used for nerve pain, has been shown in a phase III randomized controlled trial to reduce hot flash frequency in men on ADT, with the most significant effects seen at 900 mg per day (Loprinzi et al., 2009). Megestrol acetate, a synthetic progesterone, has produced reductions of more than 70% in hot flash frequency in randomized trials, though its use requires a discussion with your oncologist because it may affect cancer outcomes in certain patients (Loprinzi et al., 2004). Low-dose estrogen therapy has also been used in select cases but carries its own considerations for men with prostate cancer.
For hot flashes not related to ADT, treatment may include testosterone replacement therapy if blood tests confirm clinically low testosterone levels. This approach directly restores the hormonal milieu that prevents vasomotor symptoms.
Treating Anxiety to Relieve Hot Flashes
When anxiety is the primary driver of hot flash episodes, treating the anxiety addresses both problems simultaneously. Cognitive behavioral therapy has strong evidence for reducing the frequency and severity of anxiety symptoms and has also been studied as an intervention for vasomotor symptoms specifically. Mindfulness-based stress reduction programs have shown benefit for both anxiety and physical symptom burden in middle-aged men. For some men, a short course of medication prescribed by a psychiatrist or primary care physician can interrupt the anxiety-hot flash cycle enough to allow other strategies to take hold.
Working with a therapist is one of the most effective things a man with anxiety-related hot flashes can do. If the time commitment or cost of traditional therapy is a barrier, online therapy offers a more accessible alternative that many men find easier to fit into a demanding schedule.
Lifestyle Changes With the Strongest Evidence
Whether your hot flashes are hormonally or anxiety-driven, or some combination of both, lifestyle modifications consistently improve outcomes. Regular aerobic exercise reduces cortisol, supports testosterone production, improves sleep quality, and lowers baseline anxiety. Dietary improvements, particularly reducing alcohol, caffeine, and processed foods while increasing vegetables, lean protein, and whole grains, support cardiovascular health and reduce systemic inflammation. Prioritizing sleep is not optional: chronic sleep deprivation elevates cortisol, raises baseline stress reactivity, and worsens both anxiety and vasomotor symptoms.
Reducing or eliminating smoking, limiting alcohol to moderate levels, and maintaining a healthy weight are all independently associated with fewer and less severe vasomotor episodes in men.
What You Can Expect Going Forward
For men on ADT, hot flashes often persist for as long as treatment continues, though their frequency and severity frequently improve with time and with the interventions described above. For men whose hot flashes are anxiety-related, the outlook is quite good: anxiety responds well to both therapeutic and lifestyle intervention, and as anxiety decreases, so does the frequency of hot flash episodes.
The most important thing to understand is that you do not have to accept hot flashes as an unavoidable part of getting older. They are symptoms with identifiable causes, and most of those causes are addressable. Reaching out to your doctor, being honest about the full range of your symptoms including your anxiety and stress levels, and committing to the lifestyle changes most likely to help you is the path forward. Getting that conversation started is the hardest step, and you have already taken it.
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Dawn Ferrara is a Licensed Professional Counselor and a doctor of Psychology with additional certification in the telemental health field. She is passionate about helping people find solutions that work and believes that every person has the power to be successful. Her practice is in South Louisiana.