Even those penile extenders and stretchers that claim to work over time would actually just be stretching your flaccid length, and that has absolutely no correlation to how big you get when hard, says Fisch. So don’t waste your money on a product or service that swears it can give you five more inches. “There’s no actual scientific study that they rely on."
Update 10/20/2019: A new metastudy done by scietists from Italy and the UK reviewed several non-surgical and surgical approaches to increase penis size and evaluated their risks. The results are fully in line with out own and support the statement that penis surgery and almost all of the devices and pums sold for enlargement present a high risk and very limited results.
Ready to try it for yourself? Here's how to do it: Squeeze the muscles that you would use to stop the stream of urine and hold the contraction for 1 to 2 seconds (concentrate on only using your pelvic muscles, and not your glutes, thigh, or hip muscles). Release. Repeat 30 times, resting one minute when you're finished. Perform 3 sets, 3 to 4 times a week.
V-Y plasty is a surgical technique in which the suspensory ligament that anchors the penis to the pelvic bone is severed, releasing the shaft and allowing it to extend forward. The procedure is so named because it involves a triangular incision, the edges of which are pulled together and sutured in a "Y" shape. While effective in elongating the penis, it also makes the penis less stable when erect.
The only effects of masturbating too much are potential irritation/chafing from handling yourself too roughly, and potential difficulty maintaining relationships and/or attending to responsibilities if masturbation becomes an addiction. Anything you've heard about masturbation stunting your growth, causing blindness, hair loss, hair growth, etc. is a myth.
Our own tests included Xtrasize, Powerhorse Growthxx, VigRX (Plus), Sizegenix, Male Extra, Rexa Var, Pro Solution, ExtenZe, Penirium, Xtremesize, PeniMax, Penilarge, King Cobra, Vimax, Me Big Dick, so pretty much every well known supplement on the market today. None of them worked, without exception, all failed without any noticable long term or longer term effect. Exactly what you would expect from some random herb mixture with anecdotal effect.
The vacuum pump. This is a cylinder that sucks out air. You stick your penis in and the resulting vacuum draws extra blood into it, making it erect and a little bigger. You then clamp off the penis with a tight ring -- like a tourniquet -- to keep the blood from leaking back into your body. What are the drawbacks? The effect only lasts as long as you have the ring on. Using it for more than 20 to 30 minutes can cause tissue damage. This is sometimes used as a treatment for erectile dysfunction, but has not been proven to actually increase the size of the penis.