Clinical Evaluation of Erectile Dysfunction
Erectile dysfunction is a multifactorial clinical syndrome. Therefore, evaluation should extend beyond assessing erectile performance and should aim to identify the underlying etiology, severity, comorbidities, cardiovascular risk, hormonal factors, and psychosocial contributors.
Current EAU guidance recommends a comprehensive medical and sexual history, focused physical examination, and appropriate laboratory evaluation to identify reversible risk factors.
Medical and Sexual History
A detailed history is the foundation of ED assessment.
Clinicians should assess:
- Onset and duration.
- Frequency and severity of symptoms.
- Erectile rigidity.
- Morning erections.
- Sexually stimulated erections.
- Sexual desire.
- Ejaculatory and orgasmic function.
- Associated lower urinary tract symptoms.
- Chronic medical conditions.
- Previous surgery or pelvic trauma.
- Current medications.
- Smoking, alcohol, and physical activity.
- Psychological and psychosocial factors.
EAU guidelines emphasize comprehensive medical and sexual history in every patient presenting with ED.
Validated Assessment Tools
Validated instruments can provide structured assessment and facilitate longitudinal monitoring.
Commonly used tools include:
- International Index of Erectile Function (IIEF).
- Sexual Health Inventory for Men (SHIM).
- Erectile Hardness Score (EHS).
These tools can help quantify symptom severity and monitor treatment response
Physical Examination
The physical examination should focus on identifying underlying conditions associated with ED.
Depending on the clinical context, it may include:
- Blood pressure assessment.
- BMI and waist circumference.
- Cardiovascular examination.
- Neurological assessment when indicated.
- Genital examination.
- Assessment for signs of androgen deficiency.
- Peripheral vascular assessment when vascular disease is suspected.
Laboratory Assessment
The physical examination should focus on identifying underlying conditions associated with ED.
Depending on the clinical context, it may include:
- Blood pressure assessment.
- BMI and waist circumference.
- Cardiovascular examination.
- Neurological assessment when indicated.
- Genital examination.
- Assessment for signs of androgen deficiency.
- Peripheral vascular assessment when vascular disease is suspected.
Cardiovascular Risk Assessment
Vasculogenic ED should not be considered an isolated penile disorder.
Clinical guidelines recognize ED as a potential marker of underlying cardiovascular disease and cardiovascular risk. Cardiovascular assessment becomes particularly relevant in patients with additional risk factors or suspected vascular disease.
When Is Advanced Testing Appropriate?
Most patients can be evaluated through standard clinical assessment.
Advanced investigations may be appropriate in selected cases, including:
- Primary or unexplained ED.
- Younger patients with pelvic or perineal trauma.
- Suspected specific vascular pathology.
- Complex psychosexual disorders.
- Complex endocrine disorders.
- Patients being considered for selected surgical interventions.
Depending on the clinical scenario, advanced assessment may include nocturnal penile tumescence and rigidity testing, penile duplex ultrasonography, vascular studies, or specialized endocrine and psychosexual evaluation.
Key Clinical Message
ED should be approached as a multidimensional clinical syndrome, rather than an isolated local symptom.
The clinical assessment should ultimately answer four questions:
- What is the severity and clinical phenotype?
- Is the etiology organic, psychogenic, or mixed?
- What comorbidities and modifiable risk factors are present?
- What treatment pathway is most appropriate for this patient?