What Is a Vacuum Erection Device?

A vacuum erection device (VED) uses negative pressure to draw blood into the penis, producing an erection. A constriction ring placed at the base of the penis holds the blood in place to maintain the erection for intercourse.

A VED has three main parts:

  • A plastic tube (cylinder) that fits over the penis
  • A pump — manual, battery-operated, or electric — that creates the vacuum
  • A constriction ring (tension band) that slides off the tube onto the base of the penis

Important: Get a Quality, Vacuum-Limited Device

VEDs are sold online and over the counter, but quality varies. Use a medical-grade device with a vacuum limiter — this prevents pressure from getting high enough to cause injury. We can prescribe a VED and recommend a specific model so you know you are getting a safe one. Many medical-grade VEDs are covered by Medicare and most insurance plans, especially after prostate surgery.

Who Is a Good Candidate?

Especially Useful For

  • Men who cannot take oral ED medications (PDE5 inhibitors) due to nitrates, blood pressure issues, or other contraindications
  • Men who do not respond well to oral ED medications
  • Recovery after prostate surgery — VEDs are part of penile rehabilitation protocols to preserve penile length and tissue health
  • Men with ED from diabetes, vascular disease, or nerve damage
  • Men who prefer a non-pill, non-injection option
  • Men with ED from spinal cord injury or other neurologic conditions

Talk to Your Doctor First If You Have

  • A bleeding disorder (sickle cell disease, hemophilia)
  • Are taking blood-thinning medications (warfarin, Eliquis, Xarelto)
  • A history of priapism (painful, prolonged erection)
  • Severe penile curvature (Peyronie's disease) — may still be possible but needs guidance
  • Numbness or skin breakdown in the genital area

How to Use a Vacuum Erection Device

VEDs vary by manufacturer. Always read the instructions that come with your specific device. These are the general steps:

Step-by-Step

  1. Apply a small amount of water-based personal lubricant (such as K-Y Jelly) to the base of the penis and around the opening at the bottom of the cylinder. Never use petroleum jelly (Vaseline) — it damages the device and the constriction ring.
  2. Load the chosen constriction ring onto the loading cone, then onto the open end of the cylinder so it is ready to slide off later.
  3. Place the cylinder firmly over the entire penis, with the base pressed against your body to form an airtight seal.
  4. Operate the pump to draw air out of the cylinder. Blood will fill the penis, producing an erection. Pump only as much as needed for an erection. Excess pressure can cause injury — stop if you feel any pain.
  5. Slide the constriction ring off the cylinder onto the base of the penis.
  6. Release the vacuum and remove the cylinder. The ring stays in place and maintains the erection.
  7. The ring should be left on for no more than 30 minutes. Longer than that can cause bruising or tissue damage.
  8. When finished, remove the ring. The penis will return to its normal soft state. A little extra lubricant makes ring removal easier.
  9. Wait at least 60 minutes between uses.

Practical Tips for Success

  • The first few uses are a learning experience — most men become proficient within 3–5 practice sessions
  • Trim or shave pubic hair at the base of the penis to improve the seal
  • Use the largest ring that maintains the erection — smaller rings are more constricting and increase bruising risk
  • Use it alone the first few times before involving a partner
  • Be patient — comfort and confidence grow with practice

What to Expect

VED erections feel slightly different from natural erections:

  • The base of the penis (below the constriction ring) may feel cool to the touch and look slightly blue or purple — this is from the temporarily restricted blood flow. It returns to normal within seconds of removing the ring.
  • The penis may pivot at its base (because the ring blocks blood from reaching the deepest part). Many men adjust easily; some prefer to use a soft "support" at the base of the penis.
  • You may not ejaculate during orgasm — semen can be blocked by the ring and may emerge after the ring is removed. Orgasm sensation is preserved. This does not affect future fertility, but the ring is not a form of birth control.
  • You may want to warm the penis with a warm cloth before intercourse for comfort.

Side Effects & Safety

VEDs are very safe when used correctly. Possible issues include:

Usually Mild

  • Small red spots (petechiae) under the skin — often from too much pressure or too tight a ring
  • Minor bruising of the penis
  • Numbness during use — should resolve immediately when the ring is removed
  • Slight cold sensation

If you notice bruising or red spots, stop using the device for 5 days until they resolve, and use less pressure or a larger ring next time.

Stop & Call Your Doctor If You Have

  • Pain during or after use
  • Severe bruising or blood blisters
  • Numbness or decreased sensation that does not resolve
  • Any injury to the penis or scrotum

Hard Rules — Do Not Skip These

  • The constriction ring stays on for a maximum of 30 minutes
  • Use a vacuum-limited device only
  • Use only water-based lubricants — no Vaseline
  • Wait at least 60 minutes between uses

VEDs for Penile Rehabilitation After Prostate Surgery

After robotic prostatectomy for prostate cancer, the cavernous nerves that control erections need time to recover. During this recovery period, the penis can shorten and lose tissue health if there is no blood flow.

VEDs are a cornerstone of penile rehabilitation: regular use (typically 5–7 times per week, often without the constriction ring at first) brings oxygenated blood into the penile tissue, helping preserve length and tissue elasticity while your nerves heal. We typically start VED use within a few weeks of catheter removal as part of a broader recovery plan that may also include PDE5 inhibitors (sildenafil, tadalafil), penile injections, or — for some patients — a penile implant down the road.

How VEDs Compare to Other ED Treatments

Treatment Invasiveness Success Rate Notes
Oral PDE5 (Viagra, Cialis) None ~70% First line; cannot use with nitrates
Vacuum Erection Device None ~80%+ with practice Safe with almost any health condition
Penile injections (Trimix, alprostadil) Needle ~85% Highly effective when pills fail
Penile implant Surgery ~95% satisfaction Definitive option when others fail

Frequently Asked Questions

Will using a VED permanently make my penis larger?

No. Despite marketing claims from some manufacturers, VEDs do not increase penile size long-term. They can help preserve length when used as part of penile rehabilitation after prostate surgery — but they do not enlarge a healthy penis.

Will I be able to ejaculate normally?

The constriction ring may temporarily block semen during orgasm. Semen often emerges once the ring is removed. Orgasm sensation is preserved, and this does not affect long-term fertility. However, a VED is not a method of birth control.

Can I use a VED with ED medications?

Yes — combining a PDE5 inhibitor with a VED is safe and often more effective than either alone, particularly for men recovering from prostate surgery.

Are VEDs covered by insurance?

Often yes — particularly when prescribed for ED after prostate surgery. Medicare typically covers one VED every 5 years with a prescription. Coverage by private insurers varies. Our office can check your specific plan.

How long does it take to get used to a VED?

Most men become comfortable with the device after 3–5 practice sessions. Initial frustration is normal. We can adjust the device, ring size, or technique to make it work for you.

A Safe, Effective Non-Pill Option for ED

For many men, a vacuum erection device is the safest and simplest way to restore reliable erections — without medications, injections, or surgery. Our team will help you choose the right device, fit you with the correct ring size, and walk you through proper technique.

  • ✅ Prescribed and fitted in-office
  • ✅ Personalized technique guidance
  • ✅ Often covered by Medicare and insurance
  • ✅ Combined with other ED therapies when appropriate
Schedule Your Consultation

Call 678-344-8900 to speak with our team