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Erectile dysfunction

An educational overview summarizing the definition, causes, assessment, management, and interpretation of evidence for erectile dysfunction

erectile dysfunction · dysfunction, erectile · erectile dysfunction · erectile dysfunction (disease) · impotence · impotence, male · impotence, male sexual · male erectile Disorder · male impotence · male sexual impotence · sexual impotence (finding) · sexual impotence, Male

MONDO:0005362Public QA completeSource-bound · 4

Disease at a glance

Start with the essentials, then explore the patient and research views.

Public revision · 7491c3ebcc22

Disease category
Erectile dysfunction (ED) is a male sexual dysfunction in which a man has difficulty getting or maintaining an erection.
Core mechanism
Vascular, neurological, and hormonal issues, diabetes, medications, lifestyle habits, and psychological and relational factors may be involved, either alone or in combination.
Main causes · related factors
Since normal erection requires the coordinated action of increased blood flow, nerve signals, and the relaxation of blood vessels and smooth muscles, an abnormality at any stage can affect erectile function.
Representative manifestations
Typical symptoms include insufficient erection even with sexual stimulation, or an erection that cannot be maintained during sexual intercourse.
Individual variation
While it may become more common with age, it is not a normal part of aging, and the causes and severity vary by individual.
Diagnosis
Symptoms may be persistent or occur depending on the situation, and may improve if underlying diseases or risk factors are controlled.
Management
Diagnosis is based on medical history regarding sexual function and health status, confirmation of medications being taken, and physical examination, with optional blood tests or additional tests considered if necessary.
Treatment/Research Status
Erectile dysfunction can be a signal of vascular disease or diabetic nerve damage, so the cause should not be determined solely based on symptoms or simply interpreted as due to age.
Read Evidence
Management is conducted by evaluating the cause and comorbid conditions together, and reviewing lifestyle improvements, psychosocial support, and drug or device therapy tailored to the individual's situation.
Key Precautions
Oral PDE5 inhibitors are one of the widely used treatment options, but they are not suitable for everyone and require medical evaluation.

For patients and families

A structured guide for understanding the disease and preparing for clinical conversations.

At a Glance

Erectile dysfunction (ED) is a male sexual dysfunction in which a man has difficulty getting or maintaining an erection.

Typical symptoms include insufficient erection even with sexual stimulation, or an erection that cannot be maintained during sexual intercourse.

How the disease works

Vascular, neurological, and hormonal issues, diabetes, medications, lifestyle habits, and psychological and relational factors may be involved, either alone or in combination.

Since normal erection requires the coordinated action of increased blood flow, nerve signals, and the relaxation of blood vessels and smooth muscles, an abnormality at any stage can affect erectile function.

Variations in presentation among individuals

While it may become more common with age, it is not a normal part of aging, and the causes and severity vary by individual.

The broad framework of diagnosis and management

Symptoms may be persistent or occur depending on the situation, and may improve if underlying diseases or risk factors are controlled.

Diagnosis is based on medical history regarding sexual function and health status, confirmation of medications being taken, and physical examination, with optional blood tests or additional tests considered if necessary.

Current status of treatment

Erectile dysfunction can be a signal of vascular disease or diabetic nerve damage, so the cause should not be determined solely based on symptoms or simply interpreted as due to age.

Management is conducted by evaluating the cause and comorbid conditions together, and reviewing lifestyle improvements, psychosocial support, and drug or device therapy tailored to the individual's situation.

Oral PDE5 inhibitors are one of the widely used treatment options, but they are not suitable for everyone and require medical evaluation.

How to read clinical trials

Observational studies related to erectile dysfunction are registered on ClinicalTrials.gov, but study registration or completion alone does not demonstrate treatment efficacy, superiority, approval, or standard of care.

Points to verify during clinical consultations

In clinical practice, it is important to assess the onset of symptoms and situational differences, morning erections and libido, medications taken, diabetes/vascular disease/neurological disease, psychological/relational factors, and desired treatment goals.

Medical Guidance

This material is for general educational purposes and does not serve as a substitute for individual diagnosis or treatment.

Evidence and sources

A trial registry status does not establish efficacy or regulatory approval.