Depends. Some methods seem to be getting better responses than others. “Studies are being done to improve male girth through injections of hyaluronic acid, which is used as a filler (and is used in orthopedics to improve knee arthritis),” says Dr. Steve from SiriusXM's Weird Medicine on FactionTalk. (Here's a study that supports what Dr Steve is talking about). “The average vagina is 4 inches deep, so girth is much more likely to enhance pleasure for the woman than an increase of length, given that the average male penis length is approximately 5.5 inches,” says Dr. Steve.
Vacuum pumps are often used to treat erectile dysfunction because they draw blood into the penis, causing it to swell. Some men have tried to use vacuum pumps to increase size, but routinely using a penis pump or using it longer than typically used to treat ED can result in damage to the elastic tissue of the penis, resulting in less-firm erections. Although a vacuum pump may create the illusion of a larger penis at the time, the results are not permanent .
With a rigid ruler handy, get a full erection. Lay the ruler along the top of your penis (that is, the side that faces upward when you're standing with your penis sticking straight out), and press the end of the ruler firmly against your body (where the pubic hair is). Hold your penis against the ruler with your hand, straighten out as much as possible any curvature that may exist, and try to hold your penis so that it's sticking straight out from your body. Then, looking straight down, determine the ruler reading at the very end of your penis.
Because of great risk and uncertainty, medical professionals are generally skeptical of penile enlargement and avoid attempting it. Medical doctors do treat micropenis as a medical condition, however, usually by surgery, which can be warranted to improve urinary or sexual function. Most men seeking penis enlargement have normal-size penises, and many may experience penile dysmorphophobia by underestimating their own penis size while overestimating the average size.
The best ways to make the penis bigger naturally are to lose weight in the groin area and for men to do Kegel exercises. “There is almost as much penis inside the body (as an anchor) as there is visibly outside of the body. When a man loses weight, the exterior portion will actually be longer. I believe it is about 1/2"-1" for every 10 lbs lost. It is why often skinny guys seem to be more well-endowed,” says Yelverton. Kegel exercises strengthen the pelvic floor and the majority of men in studies report longer and stronger erections (which men often equate to size).
You can also try penis traction, a clinically tested method with a penis extender. “A penis extender applies traction to your penis and stretches it over a longer period of time — up to six hours per day. The constant stretch to which the penis is exposed, called cytokinesis, causes natural cell division, which results in a longer and thicker penis,” says Stacy Rybchin, founder & CEO of My Secret Luxury. Once your cells have grown and your penis size has increased, you will keep your extra penis length and girth forever.