How to Safely Use a Penis Pump (VED): Step-by-Step

By Dr. Debra Durst, MD – Founder, RevitalyzeMD

Patients at our Knoxville practice often ask for a walkthrough of how a vacuum erection device is actually supposed to be used — not just whether it works, but the practical details: how much pressure is safe, how long to use it, and what to do if you’re on blood thinners. Here’s a clear, physician-guided overview.

Quick Answer: A vacuum erection device (VED), or penis pump, works by creating a vacuum seal around the penis to draw in blood, producing an erection. Safe use means never pumping to the point of pain, following your specific device’s pressure guidelines, maintaining the erection for about 10 minutes, and — if using it for intercourse — using a constriction ring that can be removed easily and quickly if needed.

A VED is a cylinder placed over the penis, connected to a manual or electric pump, that creates a vacuum seal to draw blood into the erectile tissue. Common uses include:

• Achieving an erection for sexual activity, typically combined with a constriction ring to maintain it
• Penile rehabilitation after prostate surgery
• Supporting blood flow as part of a broader regenerative treatment plan for erectile dysfunction
• Management of Peyronie’s disease (penile curvature from scar tissue), generally as one part of a broader treatment approach rather than a standalone fix

(Note: our practice has used a specific commercially available device with two cylinders in patient care, though we have no affiliation with that manufacturer — the general technique described here applies broadly to most vacuum erection devices, though specific pressure gauges and instructions vary by device.)

While details vary slightly between devices, the general process looks like this:

1. Apply lubricant to the head of the penis before inserting it into the cylinder.
2. Position the cylinder over the penis and press it firmly against the base — at the pelvic floor or lower abdominal area — to form a tight seal. A proper seal is essential, since the vacuum effect depends on it.
3. Pump gradually, watching your device’s pressure gauge. Stop increasing pressure once you reach an erection — you do not need to reach your device’s maximum pressure rating, and you should stop well before it becomes uncomfortable.
4. Maintain the erection for about 10 minutes to support healthy blood flow, unless discomfort develops — in that case, stop sooner.

If using for intercourse, apply a constriction ring around the base of the penis before removing the cylinder, which helps maintain the erection.

• Pain is your stopping signal. Discomfort means you’re using too much pressure or pumping too aggressively, not that you need to push through it. Overly aggressive use risks bruising or, in rare cases, more significant vascular injury.
• Pressure limits are device-specific. Some devices include a gauge with a manufacturer-recommended maximum; always follow the guidance for your specific device rather than assuming a number that applies to a different pump.
• Blood thinners require extra caution. Patients on medications like aspirin or warfarin can generally still use a VED, but should use lower pressure, shorter sessions, or reduced frequency to minimize bruising risk — this is worth discussing directly with your prescribing physician.
• Any constriction ring must be easily and quickly removable. This is a genuinely important safety point: if a medical emergency were to occur while a constriction device is in place, you need to be able to remove it immediately. Avoid any device that doesn’t allow for quick removal.

Some devices include a second, larger cylinder intended to create a stretching effect across the penis, scrotum, and suspensory ligament, marketed as a potential way to support length. It’s important to be direct here: there is no clinical research supporting a lasting length increase from this technique — it remains theoretical, based largely on anecdotal reports from users rather than controlled studies. If length is a specific goal, it’s worth having realistic expectations and discussing evidence-based options with a physician rather than assuming this will produce reliable results.

Peyronie’s disease involves scar tissue (plaque) forming in the penis, causing curvature that can worsen over time and contribute to erectile dysfunction if untreated. A vacuum erection device is sometimes used as part of managing Peyronie’s disease, generally alongside other treatments such as PRP injections (the P-Shot) or acoustic wave therapy (GAINSWave), which are aimed more directly at addressing the underlying scar tissue.

It’s worth noting that collagenase injection (an FDA-approved medication specifically for Peyronie’s disease) is also an established treatment option discussed in urology more broadly; clinical experience and satisfaction with it can vary between practices and patients, and this is worth discussing directly with a physician experienced in treating Peyronie’s disease to understand which option — or combination — is right for your specific case, rather than ruling any option out based on one practice’s experience alone.

Because Peyronie’s disease tends to progress over time, earlier intervention when curvature is first noticed generally allows for better outcomes than waiting.

• You’re considering a VED for the first time and want guidance on proper technique and safe pressure use
• You’re on blood thinners and want individualized guidance on safe use
• You’ve noticed curvature or scar tissue in the penis and want to understand your full range of treatment options
• You’re recovering from prostate surgery and want to understand how a VED fits into your rehabilitation plan

• A vacuum erection device works by creating a vacuum seal to draw blood into the penis, and is used for erectile function, penile rehabilitation, and sometimes Peyronie’s disease management.
• Safe use means following your device’s specific pressure guidelines, stopping at the first sign of pain, and maintaining the erection for about 10 minutes.
• Extra caution is needed for patients on blood thinners.
• Any constriction ring used must be quickly removable in case of emergency.
• Length-stretching claims using a second cylinder remain unproven and should be approached with realistic expectations.

If you’re in Knoxville or anywhere across East Tennessee and you want hands-on guidance on using a vacuum erection device safely and effectively as part of your treatment plan, RevitalyzeMD is here to help.