Low Libido in Men: Causes and Relationship Effects
13 min read
Male sexual desire, hormones, stress, health, medication, and relationship intimacy
When a Man’s Sex Drive Drops: What May Be Happening Beneath the Surface
Low libido in men means sexual interest has become noticeably lower than usual, but there is rarely one universal cause. Stress, exhaustion, depression, medication, low testosterone, physical illness, erectile difficulties, relationship problems, and sexual anxiety can all affect male desire.
Low libido in men can be temporary or persistent and may involve physical, psychological, hormonal, sexual, and relationship factors. Common contributors include stress, depression, fatigue, certain medicines, low testosterone, chronic health conditions, erectile difficulties, relationship problems, and heavy alcohol use. The important comparison is usually with a man's own previous level of desire rather than somebody else's idea of how often a man “should” want sex.
What Does Low Libido Mean in Men?
Libido is another term for sexual desire or interest.
Low libido does not mean a man has to stop wanting sex completely.
It may simply mean:
- he thinks about sex less often than he used to;
- he rarely initiates sexual activity;
- his sexual urges feel weaker;
- he has less interest in masturbation as well as partnered sex;
- he feels concerned or distressed about the change;
- sexual interest has become noticeably lower than his previous pattern.
There is no correct amount of sex a man should want.
That matters because stereotypes around male sexuality can make normal variation feel abnormal.
A man does not have low libido merely because his partner wants sex more frequently.
The more useful questions are whether his desire has changed, how broadly that change affects his sexuality, and whether it causes distress.
Male libido is not measured against the stereotype that men should always want sex. The useful comparison is with the man's own usual pattern.
What Can Low Libido Look Like in a Man?
Low desire can appear differently from one person to another.
Some men notice a broad reduction in sexuality.
Others remain interested in masturbation or fantasy but lose interest in partnered sex.
| What you notice | What it may tell you |
|---|---|
| Less interest in sex generally | A broader libido change may be occurring. |
| Less masturbation and fewer sexual thoughts | The change may extend beyond the relationship itself. |
| Interest in masturbation but not partnered sex | Relationship context, sexual pressure, performance anxiety, or differences in sexual experience may matter. |
| Rarely initiates but becomes interested once intimacy begins | Desire may be more responsive than spontaneous. |
| Avoids situations that might lead to sex | Erection concerns, sexual anxiety, pressure, relationship tension, or low desire may be involved. |
These patterns do not diagnose a cause.
They simply help narrow the questions worth asking.
What Causes Low Libido in Men?
Male sexual desire is influenced by the body, brain, relationship, lifestyle, and sexual context.
Several factors may overlap.
Stress and exhaustion
Work pressure, financial strain, caregiving, poor sleep, and burnout can reduce the energy and mental space available for sex.
Depression and anxiety
Depression can reduce pleasure and motivation, while anxiety may interfere with arousal and create performance worries.
Low testosterone
Testosterone deficiency can contribute to low sexual interest in some men, although libido alone cannot establish the diagnosis.
Medication
Some antidepressants, antipsychotics, blood-pressure medicines, chemotherapy drugs, and other medications may affect sexual desire or function.
Physical illness
Diabetes, heart disease, thyroid problems, chronic pain, kidney disease, cancer, and other conditions may influence sexual wellbeing.
Sexual difficulties
Erectile dysfunction or ejaculation problems can reduce desire directly or make sex something a man becomes anxious about.
Relationship problems
Lack of closeness, distrust, resentment, conflict, criticism, or sexual pressure can affect male desire.
Alcohol and substances
Heavy alcohol use and recreational drugs can affect sexual desire, mood, hormones, erections, and overall health.
The cause is often not one isolated thing.
For example, chronic stress can disturb sleep.
Poor sleep increases exhaustion.
Lower energy reduces sexual interest.
Less sex creates relationship tension.
Now the problem has several layers even if it began with stress.
Low Testosterone and Male Libido
Testosterone plays an important role in male sexual development and sexual function.
Clinically low testosterone can contribute to reduced sexual desire.
But this connection is often oversimplified.
A man with lower libido does not automatically have low testosterone.
And feeling tired or sexually uninterested is not enough to diagnose hypogonadism.
Low testosterone can occur because of problems involving the testicles or the hormonal signalling system involving the hypothalamus and pituitary gland. Health conditions, certain treatments, and other factors may also contribute.
When a hormone problem is suspected, a clinician considers symptoms, medical history, examination, and appropriate laboratory testing.
Testosterone treatment is not a general-purpose libido booster. A man with low desire should not assume he needs testosterone without appropriate medical evaluation.
The distinction between hormonal and relational causes is explored in Low Testosterone or Relationship Problems?
Stress, Depression, Anxiety, and Male Sex Drive
Sexual desire requires mental space.
A man who is under constant pressure may find that sexual interest simply becomes quieter.
Stress can come from:
- work;
- money;
- housing;
- relationship problems;
- family responsibilities;
- caregiving;
- illness;
- job insecurity;
- grief;
- chronic lack of sleep.
Depression can reduce pleasure, motivation, energy, concentration, and interest in sex.
Anxiety can work differently.
A man may still want intimacy but find himself monitoring his performance rather than experiencing pleasure.
The question becomes:
Will I get an erection?
Will I stay hard?
Will I disappoint my partner?
Will this become awkward again?
Sex then starts to feel like an examination.
A man can still find his partner attractive while stress, depression, or anxiety makes sexual desire difficult to access.
Medication and Health Conditions That Can Affect Male Libido
When sexual desire changes, the timeline can be useful.
Did it begin after a new medication?
After an illness?
Alongside unusual fatigue?
After sleep became poor?
Several health conditions are associated with lower sex drive or sexual dysfunction.
| Possible factor | How it may affect sexual wellbeing |
|---|---|
| Antidepressants and other medicines | Some medications can affect desire, arousal, erection, ejaculation, or orgasm. |
| Diabetes | Diabetes may affect nerves, circulation, hormones, energy, and erectile function. |
| Heart and vascular disease | Cardiovascular health is closely connected with sexual and erectile function. |
| Underactive thyroid | Thyroid problems can affect energy, mood, hormones, and sexual interest. |
| Chronic pain or illness | Pain, fatigue, medication, and the psychological burden of illness can all reduce interest. |
| Sleep problems | Poor sleep can affect energy, mood, hormone regulation, and capacity for sexual interest. |
If libido changed after starting medication, the man should discuss the issue with the prescribing clinician rather than stopping treatment abruptly.
Sometimes alternatives or adjustments are possible.
Sometimes the medicine is not the primary cause.
That needs individual assessment.
Erectile Dysfunction Can Look Like Low Libido
Sexual desire and sexual performance are not the same thing.
But problems with one can affect the other.
A man may still want sex but begin avoiding it because erections have become unpredictable.
The cycle can look like this:
- An erection problem happens.
- He worries it will happen again.
- The next sexual encounter feels like a test.
- Anxiety interferes with arousal.
- He begins avoiding situations that may lead to sex.
- His partner interprets the avoidance as lack of desire.
- Pressure increases.
This is why apparent loss of interest can sometimes hide performance anxiety.
A man may avoid sex because he fears what his body will do, not because he no longer wants his partner.
See Erectile Dysfunction and Emotional Intimacy and Performance Anxiety and Avoiding Sex for those patterns in more depth.
Can Relationship Problems Cause Low Libido in Men?
Yes.
Male sexuality is sometimes described as if emotional context barely matters.
In reality, relationship quality can affect desire.
A man's sexual interest may change when:
- there is repeated unresolved conflict;
- he feels emotionally disconnected;
- resentment has accumulated;
- trust has been damaged;
- he feels criticised or rejected;
- affection has disappeared;
- sex has become highly pressured;
- sexual encounters feel repetitive or unrewarding;
- the relationship has become almost entirely practical;
- attraction has genuinely changed.
This does not mean the partner is responsible for his libido.
It means desire exists inside a relational context as well as a physical body.
If the relationship itself feels distant, read Can Emotional Disconnection Cause Low Libido? and Can Relationship Conflict Lower Your Sex Drive?
Could It Be Responsive Desire Rather Than Low Libido?
Possibly.
A man may think he has low libido because he rarely experiences spontaneous sexual urges.
But what happens once intimacy begins matters.
If he starts from a neutral but willing place and then becomes genuinely interested after kissing, touching, flirting, or erotic stimulation begins, his desire may be more responsive than spontaneous.
Broader low libido
Sexual interest remains low before and often during pleasurable stimulation, and sexual thoughts or masturbation may also decrease.
Responsive desire
There may be little interest beforehand, but genuine desire develops once wanted and pleasurable intimacy begins.
Men can experience responsive desire too.
That distinction matters because low initiation does not necessarily equal low attraction or absent sexuality.
Read What Is Responsive Desire?, Spontaneous vs Responsive Desire: What’s the Difference?, and Why Don’t I Feel Desire Until Sex Has Already Started?
What May Help With Low Libido in Men?
The right approach depends on the cause.
There is no single treatment that fits every man with lower desire.
Look at when the change started
Was it gradual?
Sudden?
Did it follow stress, medication, illness, depression, erection problems, relationship conflict, or another change?
Review physical health
Persistent or sudden libido changes may justify a medical conversation, particularly when other physical symptoms are present.
Review medication
If sexual interest changed after starting or adjusting medication, discuss it with the prescribing clinician.
Address sleep and exhaustion
A body that is chronically exhausted may have little energy available for sexual interest.
Reduce sexual performance pressure
If every sexual interaction becomes a test of erections, initiation, or desire, anxiety can become part of the problem.
Address relationship problems directly
Sexual techniques cannot fix unresolved resentment, distrust, chronic criticism, or emotional disconnection.
Make intimacy pleasurable rather than obligatory
A person is more likely to approach sexual situations that feel rewarding, safe, and freely chosen than situations associated with guilt or pressure.
The goal is not to make a man conform to the idea that he should always want sex. It is to understand why his own level of desire changed and whether that change is causing a problem for him or the relationship.
When Should Low Libido in Men Be Medically Checked?
A healthcare professional can help when low desire is persistent, distressing, sudden, or associated with other symptoms.
Medical advice is particularly worth considering when:
- the change happened suddenly;
- there are also erectile difficulties;
- there is unusual fatigue or loss of energy;
- the change began after a medication;
- there are symptoms that may suggest a hormonal issue;
- depression or significant anxiety may be present;
- there is diabetes, cardiovascular disease, thyroid disease, chronic pain, or another long-term condition;
- there are major sleep problems;
- the change is causing personal or relationship distress.
A clinician may ask about medical history, medication, mood, sleep, erections, sexual interest, alcohol or drug use, relationship context, and other symptoms.
Depending on the situation, examination or blood tests may be appropriate.
A sudden or persistent loss of sex drive can sometimes reflect a medical, hormonal, psychological, medication-related, or sexual-function issue. Proper assessment is more useful than guessing at the cause.
Low Male Desire Is Not Automatically a Relationship Verdict
When a man's desire drops, both partners may interpret it emotionally.
One thinks:
Something is wrong with me.
The other thinks:
Something must be wrong with our relationship.
Sometimes the relationship does matter.
But sometimes the central issue is stress.
Medication.
Depression.
Health.
Hormones.
Sexual anxiety.
Or simply a change in how desire emerges.
Low libido is a pattern to understand, not proof that love, masculinity, or attraction has disappeared.
This article is part of the Sexual Intimacy and Desire in Relationships: Complete Guide.
For partner-specific versions of this question, see Why Has My Husband Lost Interest in Sex? and Why Doesn’t My Boyfriend Want Sex Anymore?
And for the main cluster question, see Why Have I Lost Interest in Sex With My Partner?
FAQ: Low Libido in Men
What causes low libido in men?
Possible causes include stress, fatigue, depression, anxiety, low testosterone, medication, physical illness, erectile difficulties, relationship problems, sexual performance concerns, and heavy alcohol or drug use.
Is low libido common in men?
Yes. Low sexual desire can affect men and may occur temporarily or persist for longer. What matters most is whether desire has changed from the man's usual pattern and whether the change causes concern or distress.
Does low libido always mean low testosterone?
No. Low testosterone can contribute to reduced desire, but stress, depression, medication, illness, sexual difficulties, relationship problems, and other factors can also lower libido.
Can stress cause low libido in men?
Yes. Chronic stress, poor sleep, burnout, anxiety, and exhaustion can reduce the mental and physical capacity available for sexual interest.
Can antidepressants reduce male sex drive?
Some antidepressants can affect sexual desire or sexual function. Medication should not be stopped abruptly; concerns should be discussed with the prescribing clinician.
Can erectile dysfunction cause low libido?
Erectile difficulties can contribute to reduced desire or sexual avoidance because anxiety about erections can make sexual situations stressful.
Can relationship problems lower a man's sex drive?
Yes. Emotional disconnection, distrust, resentment, repeated conflict, sexual pressure, and changes in attraction can all affect male desire.
Can men have responsive desire?
Yes. Some men feel little spontaneous desire beforehand but become genuinely sexually interested after affectionate or erotic stimulation begins.
When should a man see a doctor about low libido?
Medical advice may be useful when the change is sudden, persistent, distressing, associated with erectile difficulties or other symptoms, or starts after medication or another health change.
Sources
- Cleveland Clinic. Low Libido (Low Sex Drive): Causes & Treatment. Updated April 21, 2025. View source.
- Mayo Clinic. Loss of sex drive in men: Natural with aging? View source.
- Mayo Clinic. Male hypogonadism: Symptoms and causes. View source.
- NHS. Low sex drive (loss of libido). Reviewed May 26, 2026. View source.
Editorial note: Male sexual desire varies between people and over time. This article is educational and does not diagnose low testosterone, erectile dysfunction, depression, or another medical condition. Sudden, persistent, or distressing changes may warrant appropriate medical or sexual-health advice.
