Erectile Dysfunction Guide (2026): Symptoms, Causes, Diagnosis & Treatment

What Is Erectile Dysfunction?

Erectile dysfunction (ED) is the inability to achieve or maintain an erection sufficient for sexual activity. ED may occur occasionally or become persistent over time.

Erectile dysfunction may be associated with cardiovascular disease, diabetes, obesity, hormonal imbalance, stress, anxiety, neurological conditions, or medication side effects.

Erectile Dysfunction Overview: ED may involve physical, psychological, hormonal, or lifestyle-related factors.

Erectile Dysfunction Information Center

Explore detailed erectile dysfunction guides covering ED symptoms, causes, diagnosis, treatment options, lifestyle factors, psychological ED, and when to seek medical advice.

ED Causes

Erectile Dysfunction Causes

Learn about cardiovascular, hormonal, metabolic, neurological, and lifestyle-related ED causes.

Symptoms

Erectile Dysfunction Symptoms

Explore common ED symptoms, erection difficulties, and related sexual health concerns.

Diagnosis

ED Diagnosis Guide

Learn how erectile dysfunction is diagnosed, including lab tests, medical history, and physical exams.

Treatment

ED Treatment Options

Compare medications, therapy, devices, and prescription ED treatment options.

Lifestyle

Lifestyle & Natural Support

Learn about exercise, sleep, diet, stress reduction, and natural ED support.

Medical Advice

When To See A Doctor

Learn when erectile dysfunction may require medical evaluation or cardiovascular screening.

Psychological ED

Psychological Erectile Dysfunction

Explore stress-related ED, anxiety, depression, and mental health factors affecting erections.

Erectile Dysfunction Medications

PDE5 inhibitors are the most commonly prescribed oral medications for erectile dysfunction. Sildenafil, tadalafil, and vardenafil work by improving blood flow during sexual stimulation.

Medication	Brand	Duration	Daily Use	Food Interaction
Sildenafil	Viagra	4–6 hours	No	Heavy meals may delay effect
Tadalafil	Cialis	Up to 36 hours	Yes	Less affected by food
Vardenafil	Levitra	4–6 hours	No	Heavy meals may slow absorption

Compare Online ED Treatment Providers

Explore medication availability, pricing, online consultations, and prescription services.

Compare Providers

Erectile Dysfunction Quick Facts

Common ED Risk Factors

Diabetes
Heart disease
Smoking
Obesity
Stress

Lifestyle Changes

Exercise
Weight management
Sleep improvement
Stress reduction
Smoking cessation

Medical Evaluation

Physical examination
Blood tests
Hormone evaluation
Medication review
Cardiovascular assessment

FAQ

Erectile dysfunction may be caused by cardiovascular disease, diabetes, stress, obesity, hormonal imbalance, medication side effects, or psychological factors.

Tadalafil may remain effective for up to 36 hours.

Exercise, smoking cessation, stress management, sleep improvement, and weight loss may improve erectile function.

Persistent erectile dysfunction, sudden symptoms, or ED associated with diabetes or heart disease may require medical evaluation.

Ready To Compare ED Medication Options?

Review online treatment platforms, pricing, prescription services, and medication availability.

Start Comparison