Since weight hanging penile enhancement systems can't be considered a device, penis pumps could be thought of as the first penile enhancement device ever invented. These pumps have been for sale for a long time and their popularity never seems to decline at all. Before you think about buying a device like this there are a few things you need to know about the device being hazardous.

If you have never a vacuum pump, it is a cylinder that fits over the penis tightly. The cylinder forms an air-tight seal and the small amount of air within is removed by the pump. The resulting vacuum pressure stretches the sponge-like tissues within the penis. Pump makers claim the tissues fill with more volume of blood than during natural erections and the quality of erections is improved. They also claim the penis expands in length and girth as a result and permanent enlargement is achieved. However, these claims are not true. Applying such vacuum pressure anywhere on the human body results in rupturing blood vessels just like "hickies" on someone's neck. Although the ruptured blood vessels and surrounding tissue will heal in time, repeated and over-zealous use of penis pumps is sure to result in long term damage.

Any positive effects of penis pumps are temporary. Erections gained with the aid of penis pumps only last a short time, since they were made for men suffering from diabetes or poor circulation to achieve erection. The suction power of the pump does fill the penis to maximum capacity but will being to leave as soon as the pressure is removed. The stronger erections come at the price of preventing blood from circulating through the penis for extended periods of time which can cause tissue within the penis dying from lack of oxygen. The vacuum also puts pressure on nerve cells within the penis which results in desensitized or numb-feeling erections. Unsafe amounts of pressure being applied on the penis can also cause deformed or curved penises as well as the inability to get an erection naturally.

For any man that is interested in safe and effective penis enlargement should avoid the hazards of penis pumps. Penis extender devices and exercise programs can achieve gains in size in safer and faster ways.