Treatment Options · 5 min read
Vacuum Erection Devices (VED)
A simple, non-drug, non-surgical way to produce an erection mechanically — and a mainstay of penile rehabilitation after prostate surgery.
What Is a VED?
A vacuum erection device — sometimes called a penis pump — is a clear plastic cylinder that fits over the penis, a pump (hand- or battery-powered) that removes air to create a vacuum, and an elastic constriction ring. The vacuum draws blood into the penis; once it's firm, you slide the ring onto the base to hold the blood in.
It works regardless of the cause of ED because it doesn't rely on the nerve–nitric-oxide pathway. That makes it a good option for men who'd rather avoid medications or can't take them — for example, men on nitrates — as well as men who want a low-cost, reusable, one-time-purchase option.
It's also a mainstay of penile rehabilitation after prostate surgery, where regular use helps preserve penile tissue health while the nerves slowly recover.
Step by Step
How to Use a VED
Lubricate and seal
Apply water-based lubricant to the base of the penis and the cylinder rim for a good seal, then place the cylinder against the body.
Pump slowly
Pump slowly to build the vacuum. The penis fills and becomes erect, usually within a couple of minutes. Pump to firmness — not to pain; stop if it hurts.
Slide the ring on
Slide the pre-loaded constriction ring off the cylinder onto the base of the penis to hold the erection in place.
Remove the cylinder
Remove the cylinder. You're ready for intercourse with the ring in place. Remove the ring promptly after intercourse.
Important: Never leave the constriction ring on for more than 30 minutes. Beyond that, trapped blood loses oxygen and tissue can be injured. Remove the ring promptly after intercourse.
What It Feels Like — Honest Expectations
The erection is real and firm enough for sex, but it can feel and look a little different: the penis may be cooler, slightly bluish or dusky, and may pivot at the base because rigidity starts above the ring.
Some couples find it interrupts spontaneity; many adjust quickly and build it into foreplay. Mild bruising, numbness, or trapped-feeling ejaculation can occur and are usually minor.
Advantages & Limitations
Advantages
- Non-invasive — no needles, no surgery
- Drug-free — safe when medications are contraindicated (e.g. nitrates)
- Low-cost, reusable, one-time purchase
- Works regardless of ED cause — doesn't rely on nerve pathways
- Mainstay of penile rehab after prostate surgery
- Reported satisfaction exceeding 80% in some series
Limitations
- Requires some planning — less spontaneous than a pill
- Erection may feel cooler, look slightly dusky, or pivot at the base
- Constriction ring must be removed within 30 minutes
- Mild bruising or numbness possible, especially early on
- Ejaculation may feel trapped or blocked by the ring
- Some men find the setup cumbersome until they're practiced
Post-Prostatectomy
VED for Penile Rehabilitation After Prostate Surgery
After prostate removal, the penis can lose length and tissue health while the nerves slowly recover. Using a VED — often without the constriction ring — draws oxygen-rich blood into the penis regularly, which may help preserve length and tissue quality during recovery. The key practical distinction: ring-off for rehabilitation, ring-on for intercourse. For your specific rehabilitation schedule — how often, how long, and when to start — follow the protocol on your REPARO rehab page, which your care team has set for you. The device was FDA-cleared for post-prostatectomy rehabilitation in 2006, though large randomized trials remain limited.
Key Takeaways
- A VED produces an erection mechanically, with no drugs — useful when pills are unwanted or unsafe.
- Never leave the constriction ring on longer than 30 minutes.
- It's a mainstay of penile rehab after prostate surgery: ring-off for rehab, ring-on for intercourse.
Is a VED Right for You?
Dr. Mutter can help you determine whether a vacuum erection device fits your situation — whether as a standalone treatment or as part of a broader rehabilitation plan.