Erectile Dysfunction: Causes, Symptoms & Treatments

What Is Erectile Dysfunction?

Erectile dysfunction (ED) is defined as the persistent inability to achieve or maintain an erection sufficient for satisfactory sexual performance. While occasional difficulty with erections is normal, consistent problems may indicate an underlying health condition that needs attention.

According to the Massachusetts Male Aging Study, approximately 52% of men between ages 40 and 70 experience some degree of erectile dysfunction. The prevalence increases with age, but ED is not an inevitable consequence of aging.

Common Causes of Erectile Dysfunction

Physical Causes

The most common physical causes of ED include:

• Cardiovascular disease: Atherosclerosis (narrowing of blood vessels) restricts blood flow to the penis. ED often appears 2–5 years before a heart attack or stroke, making it an important early warning sign.
• Diabetes: Both Type 1 and Type 2 diabetes damage blood vessels and nerves essential for erection. Men with diabetes are 2–3 times more likely to develop ED.
• High blood pressure: Hypertension damages the lining of blood vessels and reduces arterial flexibility, both of which impair erectile function.
• Obesity: Excess body fat increases inflammation, reduces testosterone levels, and contributes to cardiovascular risk factors.
• Hormonal imbalances: Low testosterone (hypogonadism) affects libido and erectile quality. Thyroid disorders can also play a role.
• Neurological conditions: Multiple sclerosis, Parkinson's disease, spinal cord injuries, and nerve damage from prostate surgery can disrupt the nerve signals required for erection.

Psychological Causes

• Performance anxiety: Fear of sexual failure creates a self-reinforcing cycle of anxiety and ED.
• Stress and depression: Mental health conditions directly impact sexual desire and arousal.
• Relationship issues: Communication problems, unresolved conflict, and lack of intimacy contribute to ED.

Medication-Related ED

Many common medications can cause or worsen ED, including antidepressants (SSRIs), blood pressure medications (beta-blockers, diuretics), antihistamines, and opioid pain medications. Never stop prescribed medications without consulting your healthcare provider — but do discuss ED as a potential side effect.

When to See a Healthcare Provider

You should seek medical evaluation if you experience:

• Consistent difficulty achieving erections
• Trouble maintaining erections during intercourse
• Reduced sexual desire
• Premature or delayed ejaculation

Early evaluation is important because ED can be a sign of serious underlying health conditions, including heart disease, diabetes, and hormonal disorders.

Modern Treatment Options

First-Line: Lifestyle Modifications

Evidence-based lifestyle changes that improve ED include:

• Exercise: 150+ minutes of moderate aerobic exercise per week can improve ED by up to 40%
• Weight loss: Losing 5–10% of body weight can significantly improve erectile function in overweight men
• Diet: The Mediterranean diet has been shown to improve vascular function and reduce ED symptoms
• Smoking cessation: Quitting smoking improves blood vessel health within weeks
• Alcohol moderation: Limiting alcohol intake can reverse alcohol-related ED

Second-Line: Oral Medications (PDE5 Inhibitors)

PDE5 inhibitors are the most prescribed ED treatment worldwide:

• Sildenafil (Viagra): Takes effect in 30–60 minutes, lasts 4–6 hours
• Tadalafil (Cialis): Takes effect in 30 minutes, lasts up to 36 hours
• Vardenafil (Levitra): Takes effect in 25–60 minutes, lasts 4–5 hours

These medications work by relaxing blood vessel walls in the penis, allowing increased blood flow. They require sexual stimulation to work and are effective in approximately 70% of men.

Third-Line: Injectable Therapies

For men who don't respond to oral medications:

• Bimix: Two-ingredient injectable solution
• Trimix: Three-ingredient formulation (papaverine, phentolamine, alprostadil) — the most commonly prescribed injectable
• Quadmix: Four-ingredient formulation for treatment-resistant cases

Injectable therapies produce erections within 5–15 minutes and have success rates exceeding 85%.

Regenerative & Innovative Options

• P-Shot (Priapus Shot): Platelet-rich plasma therapy to stimulate tissue regeneration
• Penile Botox: Smooth muscle relaxation to improve blood flow
• Shockwave therapy: Low-intensity extracorporeal shockwave therapy to promote new blood vessel growth _(Note: Shockwave therapy is not offered at ReGenesis Longevity Clinic.)_

Surgical: Penile Implants

The gold-standard permanent solution for severe ED, with patient satisfaction rates exceeding 90%. Options include inflatable three-piece devices and semi-rigid malleable implants.

The Bottom Line

Erectile dysfunction is a treatable medical condition. The key is seeking a comprehensive evaluation to identify the root cause and match you with the most effective treatment. At ReGenesis, we offer every proven treatment option — from lifestyle coaching to surgical implants — under one roof.

Ready to Take the Next Step?

Book a confidential assessment with a ReGenesis clinician.

Call 587.635.3414