Medical Disclaimer
This web site is provided for educational and informational purposes only and does not constitute medical advice or professional services. The information provided should not be used for diagnosing or treating a health problem or disease, and those seeking personal medical advice should consult with a licensed physician.
Always seek the advice of your doctor or other qualified health provider regarding a medical condition. Never disregard professional medical advice or delay seeking it because of something you have read on this website.
If you think you may have a medical emergency, call 911 or go to the nearest emergency room immediately.
No physician-patient relationship is created by this web site or its use. Dr. Artemii Lazarev does not make any representations, express or implied, with respect to the information provided herein or its use.
Erectile Dysfunction: What Patients Should Know
Introduction
Erectile dysfunction (ED) means having trouble getting or keeping an erection. It is common and often involves several systems in the body working together — blood vessels, hormones (especially testosterone), nerves, and psychological health.
Understanding how these systems interact helps explain why ED can occur and how it can be treated effectively.
How Erections Work
Erections depend on coordinated function between blood flow, hormones, and nerve signals:
- Healthy blood flow into the penis is essential. Penile arteries are small, so early atherosclerosis can reduce flow.
- Testosterone supports libido and the biological mechanisms that enable erections.
- Nerves carry signals that trigger and maintain erections.
- Psychological factors such as stress or anxiety can interfere even if the physical systems are intact.
The arteries supplying the penis are among the smallest in the body (approximately 1–2 mm in diameter), which makes them particularly vulnerable to early obstruction in the setting of atherosclerosis. In contrast, the coronary arteries of the heart are larger, measuring about 3–4 mm. This means that when erectile dysfunction is caused by atherosclerosis, there is a high likelihood that significant plaque has already developed in the coronary arteries, even if it has not yet produced symptoms. This condition carries a risk of myocardial infarction and potentially fatal outcomes. For this reason, erectile dysfunction should not be viewed solely as a urologic issue, but rather as an early warning sign of cardiovascular disease that warrants comprehensive risk assessment.
Common Causes
ED usually has multiple contributing factors:
- Vascular issues: high cholesterol, high blood pressure, smoking, and atherosclerosis reduce blood flow.
- Low testosterone: reduces libido, affects vascular health, and may decrease response to ED medications.
- Neurologic problems: diabetes or cancer treatments can damage nerves.
- Psychosocial factors: stress, anxiety, depression, and relationship issues are common contributors.
What Doctors Evaluate
A medical evaluation typically includes:
- Blood pressure, cholesterol, and blood sugar
- Testosterone level
- Medication and medical history review
- Discussion of stress, mood, and relationship health
Treatment Principles
Treatment focuses on addressing underlying causes and improving overall health:
- Optimize cardiovascular health: control blood pressure, cholesterol, and blood sugar
- Exercise regularly and maintain a healthy weight
- Stop smoking
- If low testosterone is present, treatment may improve libido and response to ED medications
- Oral medications such as sildenafil are effective for many men
- Treat underlying neurologic causes when possible
- Consider counseling or couples therapy when psychological factors are involved
- Advanced options include vacuum devices, injections, or implants
When to Seek Care
- Difficulty getting or maintaining an erection
- Presence of risk factors such as diabetes, high blood pressure, or smoking
- Low libido, fatigue, or sudden changes in sexual function
- Emotional distress or relationship difficulties related to ED
Key Takeaway
Erectile dysfunction is a common condition with physical and psychological causes. It often reflects underlying vascular or metabolic health and should not be ignored.
With proper evaluation and treatment, most men can significantly improve erectile function and overall health.