It's comes down to about 50/50, men who swear by penis pumps and other men who are skeptics.
Let's go though some do's and don'ts
*Most penis pumps have a ring around the bottom to help seal the pump and to protect the penis against chaffing. Start by lubricating your penis with a thick, good quality lubricant. A great example of a thick, good quality lubricant is Wet Gelee Original
*Now, put your penis in the pump through this ring. It is a good idea to trim or shave your pubic hair, as having too much hair can prevent the pump from making a good seal and is uncomfortable to have the hair pulled on by the pump.
*Now start by either pumping the provided hand-held device or push the button on the electric pump which does this for you.
*The penis pump will now start creating suction and drawing blood in the area. Your penis will get bigger and thicker and more swollen. This will take about 3-5 minutes to do so.
*Now take your penis out of the pump. Your penis will be bigger until the end of your orgasm, and will go back to its normal size and shape after this time.
Now some precautions to go through...
*Make sure you know where the safety release valve is when penis pumping. Testicles can actually get sucked up into the tube while pumping. Prevent the worst from happening and know how to quickly release the safety release valve!
*Vascular damage can occur if you apply too much pressure to your penis, so please, go slow and do not over pump yourself. Ruptured capillaries and blood vessels can result in internal bleeding bruises on the penis. In very extreme cases this internal bleeding can result in Peyronie's disease or permanent disfigurement or even impotence.
*The most common negative side effects of over pumping are a slight discoloration of the penis, blisters and fewer, softer erections from negative effects on blood circulation from over pumping.
*Limit all sessions to 20 minutes or under and remember,
start with the least amount of pressure until you figure out your limitations.
Using your pump around the clock, and thinking that cramming all this pumping time will speed up the process to a bigger harder penis is wrong. Truth is that's doing WAY more harm then good.
No one wants a blistered, disfigured penis.
*If for any reason you start feeling pain, stop immediately and consult your doctor.