Erectile Dysfunction

Overview

Erectile dysfunction (ED) is the ongoing difficulty getting or keeping an erection firm enough for sexual activity. An occasional problem is normal and common, often linked to tiredness, stress, or alcohol. ED is the term used when the difficulty happens regularly and is troubling.

An erection depends on healthy blood flow, nerves, hormones, and emotional well-being all working together, so ED can have physical causes, psychological causes, or both. Importantly, ED is often an early sign of problems with the blood vessels, and it can be one of the first clues to heart disease, diabetes, or other conditions. The good news is that ED is common and, in most cases, treatable once the cause is identified. It is a medical issue worth discussing openly with a doctor.

Common Causes

ED usually results from a mix of physical and emotional factors:

• Blood vessel problems: Narrowed or hardened arteries reduce blood flow to the penis; this is the most common physical cause and is linked to heart disease, high blood pressure, and high cholesterol.
• Diabetes: Damages both blood vessels and nerves over time.
• Nerve problems: From diabetes, spinal cord injury, surgery (such as for prostate cancer), or neurological conditions.
• Hormonal causes: Low testosterone or thyroid problems.
• Medications: Some blood pressure drugs, antidepressants, and others can contribute.
• Lifestyle: Smoking, heavy alcohol use, obesity, and lack of exercise.
• Psychological factors: Stress, anxiety, depression, and relationship difficulties.

Associated Symptoms

ED may occur on its own or alongside symptoms that point to the cause:

• Reduced sexual desire (which may suggest a hormonal cause)
• Problems with ejaculation
• Symptoms of heart or circulation disease, such as chest pain or leg cramping when walking
• Increased thirst and urination (which may point to diabetes)
• Fatigue, low mood, or loss of muscle (which may suggest low testosterone or depression)
• Difficulty urinating (which may relate to prostate problems)

Because ED can be an early warning of cardiovascular disease, these related symptoms are worth mentioning to your doctor.

Diagnosis & Evaluation

A clinician will ask about the pattern of the problem, your general health, medications, and emotional well-being. A clue to the cause is whether you still get erections at night or on waking, which suggests the physical machinery works and points more toward a psychological factor. Evaluation may include:

• A physical exam, including blood pressure and a genital exam
• Blood tests for diabetes, cholesterol, and testosterone, and sometimes thyroid tests
• A review of medications
• An assessment of heart and circulation risk
• Occasionally specialized tests of blood flow

Treatment & Management

Most ED can be treated effectively, often starting with the cause and lifestyle:

• Lifestyle changes: Stopping smoking, losing excess weight, exercising, limiting alcohol, and managing stress can improve ED and overall health.
• Treating underlying conditions: Controlling diabetes, blood pressure, and cholesterol.
• Oral medications: Tablets that improve blood flow (such as PDE5 inhibitors) are a common first-line treatment for many men; they require a prescription and are not safe with certain heart medicines.
• Other options: Vacuum devices, injections, hormone therapy if testosterone is low, and counseling when psychological factors are involved.
• Reviewing medications: Adjusting a drug that may be contributing, with your prescriber's guidance.

Addressing emotional and relationship factors, sometimes with a counselor, is an important part of care.

When to See a Doctor

See a doctor if erection problems happen regularly, cause distress, or affect your relationship. It is worth raising because:

• ED can be an early sign of heart disease, diabetes, or other treatable conditions
• Most causes can be managed successfully

Seek prompt care if ED comes with chest pain, breathlessness, or other heart symptoms. Also seek urgent care for a painful erection lasting more than a few hours (priapism), which is an emergency. Do not buy erection medicines online without medical advice, as they can be unsafe with certain conditions and medications.

Self-Care & Prevention

Because ED so often shares its causes with heart and blood vessel disease, the same healthy habits help prevent and improve it:

• Stop smoking, which damages blood vessels and is strongly linked to ED
• Stay physically active and maintain a healthy weight
• Eat a heart-healthy diet and keep blood pressure, cholesterol, and blood sugar well controlled
• Limit alcohol and avoid recreational drugs
• Manage stress, anxiety, and low mood, and seek support for relationship or sexual concerns
• Keep regular checkups so conditions like diabetes are caught and treated early

These steps benefit your overall health as well as your sexual function. Because ED can be an early warning of cardiovascular disease, addressing these factors is valuable even beyond improving erections.

Related Topics

Frequently Asked Questions

References

1. National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). Erectile Dysfunction.
2. Mayo Clinic. Erectile dysfunction — Symptoms and causes.
3. MedlinePlus, U.S. National Library of Medicine. Erectile dysfunction.
4. Urology Care Foundation.