impotence
Meaning of impotence: An erection depends on blood flow, so difficulty with it can be the first outward sign of narrowing arteries elsewhere.
Definition of impotence
Impotence is the persistent inability to achieve or keep an erection firm enough for sexual intercourse. Clinical writing now favors the term erectile dysfunction for the same difficulty, because impotence carries a broader everyday sense of powerlessness. Occasional difficulty is common and is not what the word describes; the term applies when the problem is consistent.
What produces it?
An erection is a circulatory event under nervous control. Signals from nerves relax the muscle in the walls of small arteries, blood fills the spongy tissue of the penis, and the swelling itself compresses the veins that would drain it. Anything interrupting that sequence can be responsible, and in most cases more than one factor is at work.
| Route | Examples |
|---|---|
| Blood vessels | Narrowing from plaque, diabetes, high blood pressure, smoking |
| Nerves | Diabetic nerve damage, spinal injury, multiple sclerosis, pelvic surgery |
| Hormones | Low testosterone, thyroid disorders, raised prolactin |
| Medicines | Several blood pressure drugs, some antidepressants, hormone lowering cancer treatment |
| Psychological | Depression, stress, relationship difficulty, anxiety about performance |
Why is it treated as a signal about the heart?
The arteries supplying the penis are narrower than those supplying the heart. Plaque that has not yet caused chest symptoms can already be enough to restrict flow through the smaller vessels, so erectile difficulty of vascular origin often appears before coronary disease announces itself. The two share their entire risk list: diabetes, smoking, raised blood pressure, abnormal cholesterol, excess weight and inactivity. That is why a new complaint of this kind is commonly taken as a prompt to assess cardiovascular risk generally rather than being handled in isolation.
How does it differ from infertility?
Completely, though the older word blurred them. Impotence concerns the mechanics of an erection. Infertility concerns whether sperm can fertilize an egg, and the two are independent: a man with normal fertility may be unable to achieve an erection, and a man with normal erections may produce no viable sperm. The same confusion once attached to sexual desire, which is a third separate matter governed largely by hormones and mood. Sorting the three apart is the first step in evaluation, because the word erectile dysfunction was adopted precisely to name one of them without implying the others.
Also known as
Used in a sentence
Impotence was one of several symptoms discussed during the urology consultation.
Good to know
Impotence is now generally referred to in clinical settings as erectile dysfunction, a shift reflecting a preference for terminology focused specifically on the physical function rather than a term with broader connotations.
Word origin
Where “impotence” comes from
From Latin impotentia, meaning lack of power, from in-, meaning not, and potens, meaning able.