Written by Dr. Shlomo Raz, MD

Updated on November 27, 2018

What Is a Penis Pump?

Penis pumps are devices that are used to increase penis size and combat erectile dysfunction.

They are typically made out of plastic chambers with a valve that controls the amount of pressure inside the chamber.

Penis pumps can use an air or water-based chamber.

An example of a commercial penis pump.
A standard penis pump (Bathmate X30, shown).

Why use one?

  • Penis Pumps help men get erections.

  • They are the cheapest treatment option for erectile dysfunction.

  • Pumps are non-invasive and are not dangerous like surgery procedures.

  • Gains in girth (especially before sex).

How Do Penis Pumps Work?

Penis pumps work by creating a negative pressure in a chamber to generate a force that expands penis tissue outward.

The pressure is generated by "pumping" the pump, and each pump's kinetic energy is stored as potential energy in the vacuum chamber.

Diagram showing how pressure changes
When water/air is pumped out of the chamber, an expansive pressure is introduced that pull outwards on the penis tissue.

This potential energy creates a mechanical force which then proceeds to exert itself on the penis.

Size Results

A penis pump can safely expand the penis up to 30% in size.

before and after results
A PhalloGauge Medical test subject's results after using a Bathmate pump.

This size increase will last up to a few hours after using the pump.

Go here to start getting these results for yourself.

Penis Pumps: Body Cell Reaction

The body cells in the penis are expanded in two ways.

The first way is by expanding each individual cell size (hypertrophy).

cells expanding in pump vacuum.
The negative pressure caused by penis pumps exert a force on each penis body cell.

As air is pumped out of the chamber, a void is created (vacuum).

That means all the "stuff" inside the chamber has to expand.

Diagram of smooth muscle tissues.
Each penis cell is stretched in the pump.

The "stuff" is none other than the tens of thousands of penis cells.

As a result, your penis cells are trained to grow.

Diagram showing how a penis fills with blood causes it to expand.
The penis on the left has lots of blood flowing to it and shows how this exerts a force on all the penis cells for erectile dysfunction and enlargement.

Frequently Asked Questions (FAQ)

Is a penis pump safe to use?

Answer: Yes. When used correctly.

How long do I have to use a penis pump each day?

Answer: You should use it for 20 minutes each day.

Are penis pump results permanent?

Answer: Yes, however, you will have to continue to use the pump to maintain the results.

How long until I see results from a penis pump?

Answer: Most users report size gains IMMEDIATELY after using the pump (temporary gains).

How many times should I use a penis pump each day?

Answer: We recommend only 1, and no more.

Will both flaccid and erect girth increase?

Answer: Yes, both will increase.

If I stop using a penis pump, will I lose my gains?

Answer: No. But you should use a pump at least once a week for good maintenance.

When is the best time of the day to use a penis pump?

Answer: We recommend to pump when you take a shower, to kill two birds with once stone.

Do you offer discounts on penis pumps?

Answer: Yes, you can get our pumps with a 30% discount here.

Can penis pumps add length gains?

Answer: Yes, to a small extent. The expansive nature of the pump also stretches the penis length-wise.

Will using a penis pump cure my erectile dysfunction?

Answer: Yes. Your erectile dysfunction symptoms will disappear.

How old do I have to be to use a penis pump?

Answer: You must be at least over 18 years of age.

Using a One to Treat Erectile Dysfunction

Here is a quick overview on how to use it:

Filling a water pump in the bathtub.

Now that you have your pump here are the steps:

  • Fill your penis pump with warm-hot water.

  • Place the water-filled pump over your erection.

  • Press the pump against your pelvis to create a seal.

  • Keep pressing the pump against your pelvis to increase pressure in the chamber

  • Keep the pump on for 15 minutes.

  • Release the valve to decrease the pressure, and remove the pump.

  • Clean and dry up as necessary.

Bathmate being filled with water.
Bathmate being filled with water so that it can be used.

A daily routine is recommended.

This means getting at least one 15-20 minute pump session in per day.

For those that use the Bathmate or Penomet penis pump, this is easily accomplished when you take your daily shower.

Using a timer app on a smartphone to time a 20 minute session.
Simply set an alarm or stopwatch timer on your smartphone and leave it near you to ensure you train your penis for the full 20 minute session.

However, if you cannot find time to get in a penis pump session, try to aim for at least two sessions per week, to maintain your gains.

After you use a penis pump, I find it is really good to just "let it all hang loose" for at least an hour.

This means, no wearing tight jeans or underwear after your pump session because this will compress your penis tissue, which is something you don't want.

You want to let your penis relax and not put it under any tension.

What to Expect From Using One

A pump product, unopened.
A Bathmate erectile dysfunction pump, still in the box, just removed from the mail envelope it came in.

So now you have a really good idea about how penis pumps work and how to use them to combat erectile dysfunction.

But what can you really expect when you use them?

Here, I give you the crucial insights that you'll be glad to know before you decide to get a penis pump.

The pumping sensation - what it feels like on your penis.

Myself, and a lot of other men, would describe the sensation as pleasurable.

That's not surprising when you find out that you no longer have erectile dysfunction.

This pleasure is somewhat between getting a blowjob and masturbating.

I say that because the suction power from a penis pump is many times greater than that any partner can give you.

Not only that, but you physically feel yourself getting bigger because of all the blood getting drawn into your penis by the pump.

Man experiencing pleasure
Most men experience pleasure from using a penis pump. Another great reason to use it!

However, past this pleasurable level is pain.

Pump too hard, and you start getting pain.

This isn't surprising because exerting too much force on any part of your body starts to induce pain.

Pain is your body's natural survival tool to tell you that something is going wrong.

Knowing this simple fact, you now know when you're pumping too hard and what is the "safe zone" for penis pump usage.

If I had to describe the pain, it feels as if something is crushing your penis. The sheer outward force makes it feel like your penis is imploding.

So don't get to this point. In fact, dial it down a bit to a few levels below this threshold.

The simple fact is, you don't even have to get near the pain threshold to get a good penis pump session in. So risking it is just irresponsible and isn't actually helping you.


We all want to get rid of erectile dysfunction - but we have to be safe.

Here are some safety rules to follow when using a penis pump:

  • Do not use a pump for more than 20 minutes during a session.

  • Do not do more than two training sessions a day.

  • Always listen to your body - if there is a sharp pain, STOP.

  • If it is your first time, start your pump training light, and slowly increase the intensity each day / session.

  • If pain does not go away after a few days or a week, stop using a penis pump and seek professional medical help.

Pump twice a day? Nobody got time for that!.

Penis Pumps for Erectile Dysfunction

Penis pumps can definitely help guys with erectile dysfunction.


Well, simply use a penis pump before sex in order to "boost" your boner.

That way you can really get the blood flowing into your penis for an erection.


In conclusion, penis Pumps are still going strong as girth-providing solutions for one reason:

They work.

Not only that, but they effectively treat erectile dysfunction.

Recent technology has provided us with water-based pumps, a significant advancement of the decade-old air-based pumps.

Whether you're a beginner or veteran to natural penis enlargement methods, you can't go wrong with a penis pump.

If anything, just use it just before sex, and your partner will notice the difference.

Luckily, our company PHALLOGAUGE is a direct distributor of reduced-price Bathmate pumps, so go here to get it directly from us.

Pumps are typically expensive, so if you're looking one with a discount + free shipping - you may be interested in our pumps that thousands of men already use.

"Hey man, here's free shipping for this penis pump, all on me."
Kind regards, Dr. Raz

Maybe later

"Hey man, here's free shipping for this penis pump, all on me."
Kind regards, Dr. Raz

Maybe later