Erectile
Dysfunction

Causes, risk factors and when an assessment is necessary

Erection problems affect millions of men — and almost no one talks about it. Yet a declining ability to achieve an erection is not a sign of failure, not a character deficit and not an inevitable consequence of aging. In most cases, it is a clearly explainable, well-researched and effectively treatable medical phenomenon.

This page explains which causes can lie behind erectile dysfunction — organic, psychological and mixed — and which risk factors increase the risk. As a basis for an informed conversation with the specialist.

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How common is erectile dysfunction?

Erectile dysfunction is more common than most men believe — or admit. It is the most common sexual dysfunction in men overall.

Age group	ED prevalence (estimate)	Most common cause in this group
20–30 years	approx. 8–10%	Predominantly psychological: performance anxiety, stress, relationship problems
30–40 years	approx. 15–20%	Mixed: first vascular factors, stress, testosterone begins to decline
40–50 years	approx. 30–35%	Increasingly organic: high blood pressure, diabetes, testosterone deficiency
50–60 years	approx. 40–50%	Predominantly organic: arteriosclerosis, hormonal disorders, medications
60–70 years	approx. 55–65%	Organic dominant: vascular diseases, nerve disorders, multimorbidity
from 70 years	approx. 70–80%	Organic, often combined with medication side effects

Important: prevalence does not mean fate. Even with pronounced organic findings, there are effective treatment options today — from P-Shot and shockwave to hormone therapy and surgical solutions.

What exactly is erectile dysfunction?

The term erectile dysfunction describes a broad spectrum — from occasional difficulties to the complete inability to achieve or maintain an erection.

The causes: organic, psychological — or both

Erectile dysfunction rarely has a single cause. Often several factors work together — and an organic disorder can quickly develop a psychological component when performance anxiety is added.

Category	Common causes	Recognizing signs
Organic — vascular	Arteriosclerosis, high blood pressure, diabetes mellitus, heart disease, smoking — all narrow or damage the blood vessels of the erectile tissue	Gradual onset, few spontaneous erections even during the day, morning erections decrease
Organic — hormonal	Testosterone deficiency (andropause), hyperprolactinemia, thyroid disorders, estrogen dominance	Combined with loss of libido, exhaustion, mood changes — typical andropause picture
Organic — neurogenic	Diabetic neuropathy, spinal cord injuries, herniated discs, consequences after prostate surgery, multiple sclerosis	Numbness or altered sensitivity in the genital area, bladder or bowel problems as accompanying signs
Psychological	Performance anxiety, fear of failure, depression, stress (work/relationship), trauma, body image problems, pornography consumption	Sudden onset, situation-dependent (partner vs. alone), morning erections present, young patient
Medication-related	SSRI antidepressants, beta-blockers, diuretics (thiazides), antiandrogens, spironolactone, some stomach medications	Onset temporally parallel to taking the medication — important medical history question
Mixed	Combination of organic root cause + psychological reaction to it — very common	Begins organically, develops performance anxiety as a second layer — most common form in men from 40

This entire process typically takes 10–30 seconds from arousal to full erection — when all systems work together smoothly.

Definition: Erectile dysfunction (ED) — when does it become clinically relevant?

Medically, one speaks of erectile dysfunction (ED) when:

The inability to achieve or maintain an erection sufficient for sexual intercourse,
persists over a period of at least 3 months
and occurs in more than half of sexual attempts.

Occasional erection problems — e.g. after stress, alcohol or exhaustion — are not of pathological significance.

Only regular, distressing occurrence makes a medical diagnosis and treatment sensible.

Clarify the cause — don't guess

A conversation with the andrologist and the right laboratory panel show what really lies behind it.

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Risk factors:
What increases the risk

Some men develop erection problems earlier — because certain life circumstances and diseases strain the sensitive systems behind the erection. The more risk factors come together, the more likely a disorder becomes.

Risk factor	Why it endangers the erection
Diabetes mellitus type 2	Damages nerves (neuropathy) and blood vessels (microangiopathy) over years — up to 75% of diabetics develop ED
High blood pressure	Chronically elevated pressure stiffens vessel walls and reduces the elasticity of the erectile tissue arteries
Smoking	Nicotine constricts vessels acutely and damages endothelial cells chronically — one of the strongest single risks for vascular ED
Overweight / obesity	Fat tissue produces estrogen, increases inflammation markers and promotes insulin resistance — triple mechanism of action
Testosterone deficiency	Direct effect on NO synthesis, tissue health of the erectile tissue and libido — andropause as a common cofactor
Heart disease	Arteriosclerosis affects small penile arteries earlier than coronary vessels — ED is often an early warning sign for heart disease
Depression & anxiety disorders	Mental illnesses activate the sympathetic nervous system, increase cortisol and lower testosterone — double effect on erection
Sleep apnea	Chronic oxygen deficiency + sleep disorder measurably lower testosterone and impair vascular function
Sedentary lifestyle	Lack of exercise worsens endothelial function, promotes overweight and lowers testosterone
Alcohol & substance use	Acute: dampens the nervous system · Chronic: damages nerves, lowers testosterone, increases estrogen
Certain medications	SSRIs, beta-blockers, thiazides, antiandrogens — reviewing the medication is part of every ED assessment
Prostate surgery / radiation	Nerve damage from surgery or radiation can permanently impair erectile function — today minimizable through nerve-sparing techniques

Even when the cause is psychological, there is no need for shame. The nervous system reacts — that is biology, not weakness. And psychologically caused erectile dysfunction is also very treatable, often even without medication.

Early warning sign erectile dysfunction — why this is important

This is one of the most medically important points that men are rarely aware of: Erectile dysfunction can be one of the first signs of a more serious heart disease.

The reason: The arteries that supply the penis with blood are significantly smaller than the coronary arteries of the heart. In the case of incipient arteriosclerosis (vascular calcification), the small penile arteries react 2–3 years earlier than the large coronary vessels.

What this means for you

A man with newly occurring organic ED without an explainable cause should also have his cardiovascular risk profile assessed.

This does not mean that every ED patient has heart disease — but it is an indication that the doctor should take seriously.

At AndroKlinik, metabolic markers, blood pressure and lipid values are standard parts of the assessment panel.

Psychological causes:
When the mind doesn't play along

Especially in younger men, psychological causes are often the main component. The nervous system of the erection reacts extremely sensitively to stress, anxiety and inner tension.

The vicious circle of performance anxiety

A one-time erection failure — perhaps after a long working day or after too much alcohol — can trigger a chain reaction: The next time, the man observes himself instead of letting go. This activates the sympathetic nervous system, which prevents exactly what he desires. The body reacts with tension — and a pattern arises that reinforces itself.

Indicative signs of a psychological main cause:

Sudden onset of the problems — not gradual
Erection succeeds during masturbation, but not with a partner
Morning erections are present and firm
Situation-dependent: it works with one person, not with another
Under 40 years old, no relevant pre-existing conditions
Temporal connection with stressful life events

"The doctor simply prescribed me Viagra" —
a story that many know

Thomas, 52 years old, project manager from Hamburg, knows the feeling. For about a year he noticed that his erections were becoming more uncertain — sometimes strong, sometimes not at all. In addition, he felt tired, less motivated, and his libido had clearly declined. At some point he took heart and went to the urologist.

Patient story — Thomas, 52 years old, Hamburg

"I didn't think anything of it for months. Stress at work, I thought. Then I finally dared to go to the urologist — that in itself was already a struggle. The conversation lasted maybe five minutes. The doctor briefly asked whether I had erection problems, and then directly prescribed Viagra. No blood test, no hormone value, not a word about testosterone or causes. I left and thought: was that all?"

Thomas' experience is not an isolated case — it is everyday reality

Many resident urologists are already at capacity limit with seriously ill patients: tumor patients, complex kidney function disorders, post-operative aftercare. Anyone who then comes with the topic of erectile dysfunction or loss of libido often gets a prescription — but no conversation.

This is not a reproach to the colleagues — it is a structural reality of the German healthcare system. Statutory health insurance practices have an average of seven minutes per patient. For careful andrological diagnostics — medical history, hormone panel, differential diagnosis, individual therapy plan — that is simply not enough.

The result: Thousands of men receive a prescription for a PDE-5 inhibitor — and the actual cause remains undiscovered. A lowered testosterone is not measured. An elevated blood pressure that damages the erectile tissue vessels remains untreated. An early cardiovascular risk profile is not recognized.

The difference: What AndroKlinik does differently

30–45 minute initial consultation — not a five-minute prescription, but a real medical history
Complete hormone panel in advance — testosterone, SHBG, LH, PSA, thyroid and more
Individual therapy plan — not symptom treatment, but clarification of the cause
Long-term support — regular laboratory checks, not a one-time prescription and goodbye

Thomas' result: testosterone deficiency, slightly elevated blood pressure, SHBG significantly elevated. Today he feels better than at 40 — with a therapy plan, not with a prescription.

When should I see a doctor?

Many men wait one to two years before seeing a doctor. That is understandable — but unnecessary. The earlier a cause is found, the simpler and more effective the treatment.

A medical assessment is advisable when:

Erection problems occur in more than half of attempts
The problems have persisted for more than 3 months
Morning erections have become significantly less frequent or weaker
Loss of libido, exhaustion or mood changes are added
Risk factors such as diabetes, high blood pressure or overweight are present
The situation is burdening the man or the relationship

Erectile dysfunction can be one of the first signs of a heart disease or arteriosclerosis — because the small penile arteries react to vascular changes earlier than the large coronary vessels. Anyone who has erection problems should therefore always know their cardiovascular status as well.

And this is how easy it is today

You don't have to go into a waiting room. You don't have to sit across from anyone you know.

At AndroKlinik you clarify everything via video consultation — discreet, specialist, nationwide.

Before the conversation, you fill out your medical history form at your leisure and send it back. The doctor is prepared.

Frequently asked questions about erectile dysfunction

Are erection problems normal from 40?

Common — yes. But 'common' does not mean 'normal' in the sense of 'inevitable'. From 40, prevalence rates increase significantly because vascular and hormonal factors increase. Many of these causes are treatable. Anyone who has regular problems should have them assessed — not resign.

Can I find out for myself whether my cause is organic or psychological?

A rough assessment is possible: If morning erections are regular and firm and the problems occur in a situation-dependent manner, that speaks rather for a psychological component. If morning erections are absent, there is a gradual onset and risk factors are present, an organic cause is more likely. Only the specialist can clarify this with certainty — with medical history and laboratory.

Can erection problems indicate a heart problem?

Yes — this is well documented medically. Because penile arteries are smaller than coronary arteries, they can react to arteriosclerosis earlier. Newly occurring organic ED without an explainable cause should always also lead to basic cardiovascular diagnostics. This is no reason to panic — but an important indication that should be taken seriously.

Does testosterone help against erectile dysfunction?

If testosterone deficiency is the cause or a significant contributing factor — yes. TRT can then improve libido, erection quality and general well-being. But if the hormone level is normal, additional testosterone alone usually does not help sufficiently. That is why laboratory diagnostics before any therapy decision is so important.

Does pornography consumption cause erectile dysfunction?

This is an increasingly discussed question. Intensive pornography consumption can lead in some men to a phenomenon referred to as PIED (Porn-Induced Erectile Dysfunction): the erection works with pornography, but not with a real partner. The cause is more neuropsychological (altered dopamine reactions) than organic. This is also treatable — an open medical history is important.

Do you recognize yourself here?

If you recognize yourself in this picture: The next step is the precise diagnosis.

Continue to: Erectile dysfunction (ED) — diagnosis & severity levels

Let's talk about it — confidentially and without detours

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About the author

Dr. med. Timo A. Spanholtz
Specialist for Plastic and Aesthetic Surgery - Specialist for men's health and intimate surgery

Dr. Spanholtz is founder and chief physician of AndroKlinik. With many years of clinical experience in men's health, andrology and reconstructive urology, he supports patients from the entire German-speaking region.

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