It happened once on an evening when it really should have worked, and it has been in your head ever since. Erection problems feel like something to be ashamed of, but that is exactly the wrong starting point. An erection is an interplay of blood vessels, nerves, hormones and your mind. When something falters, it often says something about your health more broadly than just sex.
My take: do not treat recurring erection problems as a private matter you quietly sit out, but as a measurable signal. Precisely because it can appear so early, it is useful.
How does an erection actually work?
For an erection, more blood must flow into the penis than out, directed by nerves and sustained by healthy blood vessels. Hormones, particularly testosterone, mainly feed desire and overall sexual function. If one of those links drops out, an erection may fail to come or to hold. That is why a recurring problem is rarely purely psychological.
The heart connection: why ED can be an early signal
The blood vessels in the penis are relatively narrow. If circulation falters there first, it can be an early expression of broader vascular problems. The Dutch Heart Foundation (Hartstichting) describes how erection problems and cardiovascular disease share the same risk factors, such as high blood pressure, smoking, unfavourable cholesterol and diabetes. ED is therefore sometimes called an early warning signal. That is no reason for panic, but it is a good reason to look seriously at your cardiovascular risk.
That is why a meaningful evaluation looks beyond testosterone alone. Values like fasting glucose and LDL cholesterol can help shape the broader picture.
Which cause fits which signal?
Use the table below as a decision aid to choose the right track with your GP. It does not replace investigation.
| Accompanying signal | Possible direction | Value that can help |
|---|---|---|
| Also less desire and less energy | Hormonal side | Total testosterone, possibly prolactin |
| Risk factors like smoking, excess weight, diabetes | Vascular side | Fasting glucose, LDL cholesterol |
| Breast tissue or strongly shifting mood | Hormonal disruption | Prolactin |
| Mainly situational, fine with a partner | More often psychological | Blood test less decisive |
| Sudden onset after new medication | Side effect | Discuss the drug with your GP |
Hormonal causes in a row
A low testosterone does not directly cause an erection, but it can dampen desire and sexual function. A raised prolactin can suppress testosterone production and affect function directly. A disturbed thyroid, visible through TSH, can also play a part. None of these values is a diagnosis on its own, but together they can give your doctor a direction.
A common misconception: many men think of testosterone straight away, while the vascular side plays a role at least as often. That is exactly why it is a pity to only check your testosterone and ignore the rest. The broader picture is what makes it useful.
What can you do yourself?
Because erection problems and cardiovascular health share the same roots, what is good for your heart often helps here too. Regular exercise, a healthy weight, quitting smoking, going easy on alcohol and attention to your blood pressure and cholesterol can favourably affect circulation. The Dutch Heart Foundation (Hartstichting) names these lifestyle factors as the core of vascular health. Do not expect a miracle from a single change, but a sum over weeks can make a difference. If that is not enough or the complaints persist, that is an extra reason to discuss it with your GP.
And the psychological side?
Body and mind cannot be separated when it comes to erections. Stress, fatigue, relationship tension and performance anxiety can get in the way of an erection just as much as a vascular or hormonal problem. A handy rule of thumb: if you still get spontaneous morning erections or things work during masturbation, that more often points to a psychological or situational factor than to the blood vessels. If erections fade gradually in all situations, a physical cause is more likely. That distinction helps your doctor look in a targeted way, and it often takes some pressure off too.
A blood test can map the hormonal and metabolic side, but it says nothing about the psychological component. So do not expect a conclusive answer from it; see it as one of the building blocks with which you and your doctor complete the picture.
Do not forget the STI side
Sometimes an erection problem lies not in the hormones but in an underlying inflammation or infection. Soa Aids Nederland advises an STI test with urinary or genital complaints, because many infections run without clear symptoms. It is a quick step you can take together with your GP.
When do you see your GP?
According to the NHG guideline on erectile dysfunction, a conversation is sensible with persistent complaints, certainly if they arise gradually or if other signals join them. A doctor can then weigh the hormonal and vascular sides together and, where needed, map your cardiovascular risk. Also read erection problems at a young age and the pillar hormonal health in men.
Getting started
If you want to map the hormonal side, the Hormones Man panel combines testosterone, prolactin and thyroid values in one test. That way you enter the conversation with your GP informed. Always interpret a result in consultation with a doctor; this article is general information, not a diagnosis.
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