The Call-On-Doc Guide to Erectile Dysfunction

Erectile dysfunction is defined as the persistent inability to achieve or maintain an erection sufficient for satisfactory sexual activity. Occasional difficulty with erections is common and not usually a cause for concern. ED is diagnosed when symptoms are ongoing, typically for several months.

An erection depends on healthy blood flow, nerve signaling, hormone balance, and psychological factors. Disruption in any of these systems can contribute to erectile dysfunction.

ED is often multifactorial, meaning more than one factor may be involved.

Physical Causes

Common physical contributors include:

• Cardiovascular disease and poor blood flow

• High blood pressure

• Diabetes

• High cholesterol

• Obesity

• Low testosterone

• Neurologic conditions

• Sleep apnea

Because erections rely on blood vessel health, ED can sometimes be an early indicator of heart disease.

Psychological Causes

Mental and emotional factors can also play a significant role, including:

• Anxiety or performance anxiety

• Depression

• Chronic stress

• Relationship concerns

Psychological and physical causes frequently overlap.

Medications and Substances

Certain medications and substances can contribute to ED, such as:

• Antidepressants

• Blood pressure medications

• Opioids

• Excessive alcohol use

• Tobacco and nicotine products

A medical review helps determine whether medication adjustments are appropriate.

Diagnosis begins with a medical evaluation that may include:

• Review of symptoms and sexual history

• Assessment of medical conditions and medications

• Evaluation of cardiovascular risk factors

• Laboratory testing (testosterone, blood sugar, cholesterol when indicated)

ED is often a signal to assess overall health, not just sexual function.

Oral Medications (First-Line Treatment)

Phosphodiesterase-5 (PDE-5) inhibitors are considered first-line therapy for most men. These medications improve blood flow to the penis during sexual stimulation.

Common options include:

These medications are effective for many men when used appropriately and prescribed by a licensed provider.

Hormonal Treatment

If low testosterone is identified and clinically significant, testosterone replacement therapy may be considered under medical supervision.

Lifestyle Modifications

Lifestyle changes can significantly improve ED and overall health:

• Sildenafil

• Tadalafil

• Vardenafil

•  

  These interventions often enhance medication effectiveness.

  Psychological Support

  When anxiety, depression, or relationship factors contribute to ED, counseling or therapy may be beneficial—either alone or in combination with medication.

• Smoking cessation

• Limiting alcohol

• Stress reduction

• Regular physical activity

• Weight management

• Improved sleep

You should seek evaluation if:

• ED symptoms are persistent or worsening

• Erections are consistently difficult to achieve or maintain

• ED is accompanied by fatigue, low libido, or mood changes

• You have cardiovascular risk factors

Early care improves outcomes and may uncover treatable underlying conditions.

Call-On-Doc provides fast, discreet online care for erectile dysfunction. Licensed medical providers review your health history and symptoms to determine safe, effective treatment options—without in-person visits or long wait times.

ED treatment through telehealth allows men to access care privately and conveniently, supporting both sexual health and overall wellness.