Erectile Dysfunction in Young Men: Causes, Myths and What to Do

Erectile dysfunction is not just an older man's concern

Many people assume erectile difficulties only affect men in later life. In reality, men in their twenties and thirties can experience them too. While occasional difficulty getting or keeping an erection is normal and rarely a cause for alarm, persistent problems are worth understanding — partly because the causes in younger men are often different.

If you want a broad overview first, our guide to erectile dysfunction explained covers the basics in plain language.

Common causes in younger men

In younger men, psychological and lifestyle factors tend to play a larger role than they do later in life.

• Performance anxiety — worry about "failing" can become self-fulfilling, creating a cycle of stress and difficulty.
• Stress and low mood — work pressure, relationship strain, anxiety and depression all affect arousal.
• Alcohol and recreational drugs — both can blunt the nervous system signals needed for an erection.
• Tiredness and poor sleep — fatigue lowers libido and physical responsiveness.
• Pornography habits and unrealistic expectations — some men find this affects arousal with a real partner.
• Certain medicines — including some antidepressants and blood-pressure treatments.

Physical causes still matter

It would be a mistake to assume the cause is always "in the head". Conditions such as diabetes, hormonal imbalances and high blood pressure can appear earlier than expected. Importantly, erectile dysfunction can sometimes be an early warning sign of cardiovascular disease, because the small blood vessels of the penis can be affected before larger arteries elsewhere. This is one reason a check-up is sensible rather than something to be embarrassed about.

A useful self-check

Morning or night-time erections offer a rough clue. If you regularly wake with erections but struggle during sex, the cause is more likely psychological than physical — though this is not a diagnosis. You can read more in our companion guide on the topic.

Lifestyle steps that genuinely help

Before considering any treatment, simple changes often make a real difference:

• Cut back on alcohol and avoid recreational drugs.
• Prioritise sleep and manage stress where you can.
• Stay physically active — regular exercise supports healthy circulation.
• Stop smoking, which damages blood vessels.
• Talk openly with your partner to ease pressure.

When to see a doctor

Book an appointment if difficulties last more than a few weeks, if they cause you distress, or if you have other symptoms such as reduced libido, chest pain on exertion, or unusual fatigue. A doctor can check for underlying conditions and discuss options.

Treatment options

Where treatment is appropriate, the most common prescribed medicines are PDE5 inhibitors such as sildenafil and tadalafil, which improve blood flow to the penis when you are aroused. These are prescription medicines for good reason: they are not suitable for everyone. In particular, they must never be combined with nitrate medicines (often taken for chest pain or heart conditions), as this can cause a dangerous drop in blood pressure. A doctor or pharmacist can advise whether they are right for you, and you should always read the patient information leaflet.

For younger men, addressing anxiety — sometimes with the help of a therapist or counsellor — can be at least as valuable as medication. You can browse our erectile-dysfunction range or shop all to see what is available, but a conversation with a clinician should come first.

The takeaway

Erectile difficulties in younger men are common, usually treatable and often linked to stress, lifestyle or anxiety rather than a serious illness. Seeking advice early reassures you, rules out underlying problems and opens up effective solutions.

General information only — not medical advice. Always read the patient information leaflet and consult a doctor or pharmacist before starting any medication.