Erectile dysfunction in younger men
Often reversible.
If you searched for this at 2am, you are not the only one. Pattern before cause — that's the operating principle of this page.
You probably opened this page after one of those nights. The scroll through r/ErectileDysfunction. The TikTok video about low testosterone. A finger-prick clinic promising to optimise you within a month. The internet hands you a cause — porn, low testosterone, finasteride, modern life — before it asks any questions. A cause offered before a history is just a guess with branding.
This page is mainly for men in their twenties and thirties, but much of it also applies to early midlife. In your forties, ED more often deserves a serious cardiovascular and metabolic work-up alongside the rest.
Pattern before cause — pick your starting conversation
Read the three patterns. Notice which fits you most closely. None is "right" or "wrong" — each points to a different first conversation.
Pattern map
Three patterns — where to start
Works alone, fails with a partner
Likely starting point: performance anxiety, novelty, relational pressure, condom interruption, desire mismatch. The conversation is about the nervous system, not the arteries.
Softer everywhere, no morning erections
Likely starting point: metabolic, hormonal, sleep or vascular work-up. Blood tests and a careful history before anything else.
Started after a drug, gym cycle or sleep collapse
Likely starting point: medication, substance or routine trigger. Document the timing precisely and bring it to the appointment.
It used to work fine — what's actually going on
An erection is the result of one nervous system telling another one to relax. The parasympathetic system — the one that takes over when you feel safe and engaged — releases nitric oxide, which dilates the arteries in your penis. The sympathetic system — fight-or-flight — does the opposite. It floods you with adrenaline, which clamps down on the same arteries.
The bear in the room
When you are scanning your partner's face for signs of disappointment during sex, your sympathetic system does what it would do if a bear walked into the room. The bear is the possibility of a soft erection. Your body responds to the threat by producing the soft erection. It is a self-fulfilling loop, and it is real physiology — not a moral failing.
This is performance anxiety. In clinic, it is one of the commonest patterns I see in younger men with new erectile difficulty. It is treatable. It does not mean you are broken. It does not mean your relationship is in trouble. And — this is the most important bit — it does not automatically mean you watch too much pornography.
The two loudest internet myths
Fact
Fact: Large population studies do not support the simple claim that frequency of pornography use, by itself, causes ED. Distress, compulsive patterns, moral conflict, avoidance of partnered intimacy and anxiety around use are usually more clinically relevant.
Fact
Fact: There is no good clinical trial evidence that pornography abstinence alone cures erectile dysfunction. Some men find changing pornography habits helpful, especially if use feels compulsive or avoidant.
The masturbation-pattern angle most people miss
Some men have trained their sexual response around a very specific masturbation pattern — high pressure, high speed, particular stimulus, no negotiation with another person's pace. That does not damage the penis, but partnered sex can feel less familiar and more effortful. The fix is not shame. It is retraining attention, sensation and pace.
The condom moment
If the problem happens mainly when putting on a condom, say that. The interruption, pressure to stay hard, reduced sensation, wrong size, alcohol, and fear of losing the erection can all combine. The answer may be practical — better fit, more lubricant, rehearsing condom use outside high-stakes sex — as much as medical.
If you keep trying to force it
Some men keep trying to force penetration, squeeze the penis to check firmness, or repeatedly test whether it is back. That checking behaviour keeps the threat system switched on. Repeated bending or forcing a semi-rigid erection can also cause pain or injury. The aim is not to push through.
When stakes change — the casual vs caring shift
The granular questions I ask in clinic
Diagnostic granularity
Pattern before cause — what I actually ask
Situational vs global
Only with a new partner? Only with one specific partner? Only with penetration? Only after alcohol or drugs? Or in every context, including masturbation and morning erections?
Pelvic-floor tension
Urinary frequency, perineal ache, pain after ejaculation, constipation, the sense of clenching during sex. A tense pelvic floor sits alongside performance anxiety and is often missed.
Ejaculation and orgasm
Finishing too quickly, not finishing with a partner, needing very specific stimulation, orgasm feeling muted. These details often explain the pattern better than testosterone alone.
Desire mismatch
Sometimes ED is not fear of failure but information about desire. A mismatch between the sex you are trying to have and the sex your body is responding to. Not a urological diagnosis — but a real conversation worth having openly.
When the body says something — even at your age
Most younger men I see do not have a vascular problem. But some do, and they are exactly the ones who get missed — because they are lean, fit, asymptomatic, and the clinician assumes the problem must be in their head.
1 in 4
In one well-known clinic-based study, about one in four men seeking first medical help for new-onset erectile dysfunction was aged 40 or under. Some longitudinal data suggest ED in younger men can be a particularly strong warning marker for future cardiovascular disease — sometimes more strongly than in older men.
Some men have normal body weight but significant visceral fat and insulin resistance — a pattern more common in some ethnic groups, including South Asian populations, but not limited to them. Which is precisely why we test rather than guess. Insulin resistance and abnormal lipids do not show up in a mirror. They show up in a fasting blood test.
A pattern I have seen more than once
Want a CV-aware work-up at your age?
Book a consultation that takes the metabolic and cardiovascular angle seriously — not just a tablet.
What a complete first appointment actually includes
Assessment
The four pillars of the first visit
History
Full sexual and medical history. When it started. What pattern. What helps and what makes it worse.
Examination
Blood pressure, body weight and waist, examination of testicles and penis, peripheral pulses.
IIEF-5
A short validated questionnaire — two minutes — that gives the conversation a starting point.
Bloods
Fasting glucose and/or HbA1c (a blood test that reflects average sugar over 2–3 months), lipid profile, and an early-morning total testosterone (drawn 7–11am, repeated if low or borderline).
Where any of those is abnormal, I usually add SHBG and calculated free testosterone, LH and FSH, and prolactin if low desire is the main complaint. Morning samples should be repeated before any treatment decision.
"Morning wood is the only test you need." Preserved morning and night-time erections do support a predominantly psychological explanation, but it is one signal in a workup, not the whole workup. Depression, antidepressants, and sleep apnoea all suppress night-time erections without telling you anything about your cardiovascular health.
"If a tablet works, the problem must be psychological." Logically wrong. Sildenafil, tadalafil, avanafil and vardenafil all work downstream of the nerve signal. They restore function in psychological ED, in vascular ED, and everything in between. A successful response tells you nothing about the cause.
Substances, sleep, and what's quietly stopped working
In your twenties and thirties the body is forgiving — until it isn't. How you sleep, what you drink, what you take recreationally, what you do at the gym, and what you take from the pharmacy are doing more to your erections than the dramatic causes you have been sold online.
Alcohol acutely depresses the central nervous system; chronically it depresses testosterone production and damages the autonomic nerves that drive an erection. The risk rises with dose, and heavy weekly drinking — for example around twenty-eight units a week or more, roughly ten pints — is where the effect becomes easier to measure. If you drink heavily at weekends and notice softer erections the morning after, that is your nervous system telling you the truth.
Some men feel cannabis reduces anxiety in the moment; regular heavy use has been associated with sexual dysfunction in some studies, and it can interact with motivation, mood, sleep and hormone pathways. If you use cannabis daily and have new ED, it is worth reducing or stopping for a few weeks and seeing what changes.
MDMA, cocaine and ketamine — particularly in the chemsex context — commonly make erections less reliable, partly because of effects on serotonin, arousal, temperature, hydration, sleep and the autonomic nervous system. Combining recreational drugs with PDE5 inhibitor tablets is not the harm-reduction strategy it is sold as. It removes a useful safety brake on sexual behaviour. I will not prescribe PDE5 inhibitors as a way to make high-risk drug use easier; the safer conversation is harm reduction, sexual health, and what is actually happening to your erections.
One point needs naming hard: poppers and PDE5 inhibitors such as sildenafil or tadalafil are an absolute no — together they can cause profound, sometimes fatal, drops in blood pressure. Highly relevant in the men-who-have-sex-with-men community and routinely under-discussed in primary care.
If you cycle more than four or five hours a week and notice perineal numbness on the saddle, the saddle is the cause and it is fixable: a no-nose saddle, a more upright position, and standing on the pedals every few minutes.
In a small experimental study, one week of sleeping five hours a night reduced daytime testosterone in healthy young men by around ten to fifteen per cent. Obstructive sleep apnoea — which affects men in their twenties and thirties more often than is recognised — is associated with erectile dysfunction in up to two-thirds of cases of moderate to severe disease. Heavy snoring, witnessed apnoeas, waking exhausted regardless of how long you slept — that is part of your erection workup.
If you have used anabolic-androgenic steroids, exogenous testosterone shuts down your own production, and recovery after a cycle may take months or years. If you have used and now have low libido, soft erections, smaller or tender testicles, and low mood, please see an andrologist or endocrinologist — not a clinic that will sell you more testosterone, which locks the suppression in.
When medication played a part
Some of the men I see have erectile dysfunction that started, or worsened, around the time they began a medication. Two domains worth knowing: SSRIs and finasteride. Both are real. Both are over-stated by online communities and dismissed by some clinicians. Both deserve a careful middle ground.
SSRIs and persistent post-SSRI sexual dysfunction (PSSD)
Finasteride and persistent post-discontinuation symptoms
The honest middle ground
The conditions are real, formally acknowledged by European regulators, and small in true prevalence. I will not pretend there is a proven curative treatment where one does not exist. What I can do is take the symptoms seriously, document them carefully, and not gaslight you. Many men were prescribed these drugs before persistence risks were clearly described in patient information; if you were not warned, your frustration is understandable.
Beta-blockers, particularly the older non-selective ones; thiazide diuretics; antipsychotics; opioids; and any of the gonadotropin-releasing hormone analogues used in transgender care or in prostate cancer treatment. If you started any of these around the time your erection changed, that is worth raising at the appointment.
What's circulating online — and how to spot it
An entire economy is built on the fear of being a man with a soft erection. Same diagnostic principle throughout: an answer offered before a history is just a guess with branding.
What to spot, what to skip
Four kinds of online noise
Online TRT clinics
Some make this look simpler than it is: one blood test, one number, one prescription. Real diagnosis requires symptoms plus two morning samples plus full hormone panel. Above 12 nmol/L is unlikely to explain ED on its own; below 8 is more clearly abnormal in a symptomatic man; 8–12 is a grey zone that needs interpretation, not a sales pitch.
Supplement market
Tongkat ali has a modest signal in low-normal T men. Fadogia agrestis has only animal data and a theoretical risk of testicular toxicity. Ashwagandha has a modest stress-related signal via reduced cortisol. None treats erectile dysfunction directly. Don't build a treatment plan on it.
Counterfeit pharmacies
MHRA seized ~19.5 million doses of unauthorised ED medicines in the UK between 2021 and 2025, with 4.4 million in 2025 alone. Yearly seizures have more than doubled since 2022. Seized products may contain no active ingredient, the wrong dose, hidden drugs or toxic ingredients. Sildenafil and tadalafil are real cardiovascular drugs, not sweets with better branding.
The masculinity-anxiety economy
Manosphere content amplifies anxiety and sells you certainty back — supplements, subscriptions, blood panels, coaching packages. You do not need certainty from an influencer. You need a proper history, a fasting glucose, and a clinician who can tell the difference between pattern and panic.
This is a misreading of one paper amplified by influencer culture. The actual data show a small generational shift, in the order of one per cent per year of survey wave — not fifty per cent. A larger analysis adjusting for body weight found no decline at all. It is not the explanation for your soft erection at twenty-five.
Six myths worth demolishing today
The myths you brought in
Myth
Myth: Erectile dysfunction in your twenties means you are broken.
Fact
Fact: One in four men seeking first medical help for new-onset ED was aged 40 or under in clinic data. Most younger men improve substantially once the pattern is understood.
Myth
Myth: I have low T at 25.
Fact
Fact: Testosterone deficiency requires bothersome symptoms plus two morning samples below threshold. A single non-morning low-normal value is not a diagnosis. It is a sales opportunity for the wrong clinic.
Myth
Myth: Morning wood is the only test I need.
Fact
Fact: It is a useful clue, not a verdict. Antidepressants, sleep apnoea and depression all suppress night-time erections without saying anything about your cardiovascular health.
Myth
Myth: If a tablet works, my problem is in my head.
Fact
Fact: Logically wrong. PDE5 inhibitors work downstream of the nerve signal in psychological, vascular and mixed ED. A successful response tells you nothing about the cause.
Myth
Myth: NoFap will cure me.
Fact
Fact: There is no good clinical trial evidence that pornography abstinence alone cures ED. The 90-day "hard mode" is a cultural movement, not a treatment.
Myth
Myth: Lean and young means I don't need a metabolic check.
Fact
Fact: Visceral fat, insulin resistance and early dyslipidaemia don't show up in a mirror. They show up in a fasting blood test. Your build is not a substitute for the workup.
Self-advocacy when your appointment is too short
The most common single complaint I hear from younger men about NHS primary care is some version of: "I told my GP and they said it was probably anxiety and gave me sildenafil." Sometimes that is the right answer. Often the work-up that should sit alongside it is not done.
The script for your GP appointment
Save the full leaflet to your phone
The script above plus the "why each test matters" panel and a complete first-appointment checklist, formatted for screen-saving or printing.
If the basic work-up is not offered, it is reasonable to ask why, and reasonable to ask for a referral to a urologist with an interest in andrology, or for a second clinical opinion.
Pattern recognition — where to start the conversation
This is not a diagnosis. It is a pattern recognition exercise to help you describe your situation more precisely when you see a clinician. None of the options below is "right" or "wrong" — they point to different starting conversations.
Knowledge check
Which of these best describes your current pattern?
What I want you to take away
If you have read this far, you have already done the hardest part. Most men your age don't look. Most decide that asking is more shameful than not knowing. You have not done that.
Your erection is one signal in a body that has many. For many younger men, the answer is reversible or very treatable, and the path is not a supplement, a "reboot", or a subscription. It is a conversation with a clinician who knows what to look for. If the conversation is not going well, you are allowed to ask for a different one.
This is what I do every week. None of what you describe will surprise me. If the answer is simple, I will tell you it is simple. If it needs proper investigation, we will do that properly. This page is part of my fuller guide to erectile dysfunction, where I explain causes, investigations and treatment options in more detail.
Ready for the proper conversation?
Book a consultation and we'll work through it together — no shortcuts, no shaming.
Frequently asked questions
Related guides
Can't get hard with a new partner
The situational pattern in detail — why your body reacts differently when stakes are raised.
Erectile dysfunction and your heart
Why the erection is sometimes the first warning that something larger needs attention.
Venous leak — and why many diagnoses are wrong
A careful guide to when venous leak is worth considering, and why many young men are given this label too quickly.
What testing for ED actually involves
The questionnaires, blood tests and scans I use to make sense of the pattern.
