erectile dysfunction

Overview
Erectile dysfunction (ED) is the persistent difficulty in achieving or maintaining an erection firm enough for satisfactory sexual intercourse. While it’s common for men to occasionally experience this, ED is only diagnosed when it occurs regularly or frequently. It can be caused by physical, psychological, or lifestyle factors, or often a combination of these. ED is not just a sexual issue, it can be a signal of underlying health conditions, particularly those affecting blood flow or nerve function.

Why It’s Important
Erectile dysfunction can significantly affect a person’s self-esteem, relationships, and quality of life. More importantly, ED is often an early warning sign of cardiovascular disease, diabetes, or hormonal imbalances. Identifying and treating the root cause of ED can help prevent more serious health issues and restore sexual function and confidence.

Quick Facts

  • Affects about 30 million men in the United States

  • More common with age, but not a normal part of aging

  • Can be chronic or situational

  • May be caused by vascular issues, nerve damage, hormone levels, medications, or mental health conditions

What Happens in the Body
An erection occurs when blood flow increases to the penis, triggered by sexual arousal. This process requires proper functioning of the nervous system, blood vessels, hormones, and brain. In ED, one or more of these systems doesn’t function properly, for instance, blood flow may be reduced, nerve signals may be impaired, or psychological factors like anxiety may interfere. Over time, physical causes tend to play a larger role, especially in older men.

Common Signs and Symptoms

  • Inability to get an erection

  • Trouble maintaining an erection during sexual activity

  • Reduced sexual desire

  • Performance anxiety or stress around intimacy

  • Inconsistent ability to perform (e.g., erections during sleep but not during sex)

Diagnosis

  • Medical history and physical exam, including evaluation of blood pressure and genital health

  • Blood tests to check for diabetes, hormone levels (e.g., testosterone), or heart disease

  • Urinalysis for signs of underlying health conditions

  • Overnight erection test (nocturnal penile tumescence) to determine if ED is physical or psychological

  • Ultrasound to assess blood flow to the penis
    See a doctor if:

  • ED is persistent (over several weeks or months)

  • You're experiencing other symptoms like low libido, fatigue, or depression

  • You have underlying conditions such as diabetes or high blood pressure

Treatment and Management

  • Lifestyle changes: weight loss, quitting smoking, reducing alcohol, exercising

  • Medications:

    • Oral ED drugs (e.g., sildenafil [Viagra], tadalafil [Cialis], vardenafil)

    • Hormone therapy for low testosterone (if applicable)

  • Psychological therapy: for ED with a mental health component (e.g., anxiety, depression)

  • Devices: vacuum erection devices (pumps), penile implants (surgical option for severe cases)

  • Surgical or vascular procedures (rare, for blood flow problems)
    ED can often be successfully managed, but treatment depends on the underlying cause.

Risks and Complications

  • Strained relationships or reduced intimacy

  • Low self-esteem or depression

  • Delayed diagnosis of serious conditions like diabetes or cardiovascular disease

  • Overuse of or dependence on ED medications without addressing the cause

Who Is at Risk

  • Men over 40

  • People with diabetes, high blood pressure, or heart disease

  • Smokers and heavy drinkers

  • Those with obesity or sedentary lifestyles

  • Men with depression, anxiety, or chronic stress

  • Side effects of certain medications (e.g., antidepressants, blood pressure meds)

Related Conditions

  • Diabetes mellitus

  • Hypertension (high blood pressure)

  • Coronary artery disease

  • Low testosterone (hypogonadism)

  • Depression and anxiety disorders

  • Peyronie’s disease (curvature of the penis)

When to See a Doctor

  • If ED happens regularly and impacts your life or relationships

  • If ED is accompanied by other symptoms like low libido, fatigue, or chest pain

  • Before starting over-the-counter treatments or supplements

  • If you suspect a psychological or relationship-based cause

Last Updated: June 23, 2025