Streching devices and penis pumps are increasingly popular, often selling for hundreds of US dollars. We recommend staying away from these devices, because using them can lead to permanent damage of the cavernous body and blood vessels of your penis. In worst case, the usage of penis extenders can result in erectile dysfunction, the inability to get and maintain an erection. Although many surgeons, including our advisory team, keep warning about them, these warnings are unheard and ignored by many men. Reconstructive surgery for a penis damaged by excessive and wrong use of streching devices is very expensive and rarely results in full recovery.
The force you need to apply is just enough to induce micro-tears in your penis tissue. Fortunately, this is way less than 3 lbs. of force. In fact, the micro-tears are safely generated by applying small to moderate force for long periods of time. Applying a small force for long periods of time (4-6 hours a day), is the correct way to create the micro-tears and go about penis stretching. It’s also the best way to ensure safety and prevent injury.

Especially strechers are aggressively marketed because manufacturing costs are only about $20 in China and they sell to consumers from $150 up to almost $500. Don’t believe it? Check chinese websites/marketplaces like Alibaba for wholesale prices. A profit margin of up to 2500% is something even many drug lords are envious of, so the companies selling extenders build shiny websites, pay medical personnel for fake testimonials or raving reviews of these useless and dangerous devices.
Stretching with weights. Weights or stretching exercises won't bulk up your penis -- it's not a muscle. But hanging weights off your flaccid penis may stretch it a bit, O'Leary says. The catch is that it requires a freakish degree of dedication. "You might have to wear a weight strapped to your penis eight hours a day for six months," says O'Leary. At the end of it, you could be lucky enough to gain about half an inch. Risks include tearing of the tissue, burst blood vessels, and other problems.
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