The short answer ; Yes. The long answer ; No. Penis pumps enlarge your penis by using a vacuum around the penis to make more blood flow into the penis. You get the same effect when you have a very strong erection. This is however only temporary and is mostly used for men with impotence.
The facts, however, are that pumps are used by men who suffer from chronic insulin dependent diabetes or circulatory disorders (which is why even Medicare will cover their cost). Men with these conditions have such poor blood circulation due to their sugar metabolism, that they can’t even get the blood flowing into the area. What the pump does for these men is stretch the skin and underlying tissues, allowing them to clamp off the blood flow and consequently trap it in their penis. With the clamp firmly in place, they can briefly have sex.
Pumps are of greatest benefit when the penis is already erect or when you are not achieving a full erection. The enlargement effect however is not long lasting and will disappear quickly once pumping ceases and you have to use a ring to keep the blood pumped into the penis, in the penis.
Note Here : penis pumps can be dangerous if not used correctly and if the wrong type of penis pump is used, so use carefully and ensure that whatever pump you use has a reliable pressure gauge and that you follow the instructions closely. Some men find that after using a penis pump for a period of time, the only way they would be able to obtain an erection is with the pump.
Reports on the damage that penis pumps can cause are rampant. Using the wrong vacuum pump and using it too often can burst blood vessels in the penis, peel skin and cause general pain and soreness.
IT IS ESSENTIAL TO USE A MEDICALLY APPROVED PENIS PUMP WITH A BUILT IN VACUUM GAUGE.
They also tend to thin out the penis. This makes the penis very weak and erections that don’t last long if at all. There are cases of penis pumps even deforming the penis.
The University of Maryland only advises using penis pumps for impotence treatment. So if you are really having trouble to achieve an erection then you can look into this method.