5 Things Every Man Needs To Know About His Penis

There’s no topic that generates more myths and misinformation than a man’s penis. For example, one myth circulating among males is that men with large shoe sizes or large feet have longer penises. Two urologists at St. Mary’s Hospital in London conducted a study involving 104 men and found no statistically significant correlation between shoe-size and stretched penile length. So ladies, stop looking at a man’s feet and focus on his face and his personality, both of which are not related to his penis length.

Here are some things you might have wondered about your penis, but were afraid to ask.
No. 1: Your Penis Does Have a Mind of Its Own
You’ve probably noticed that your penis often does its own thing. You may remember times when it was completely inappropriate to have an erection; and yet you couldn’t wish it away.
It’s true that you have less command over your penis than body parts like your arms and legs. That’s because the penis answers to a part of the nervous system that’s not always under your conscious control. This is called the autonomic nervous system, which also regulates heart rate and blood pressure and the size of the iris of your eye.
Sexual arousal usually isn’t voluntary. The conscious mind is complicit in it, but a lot of sexual arousal goes on in the sympathetic nervous system. In addition, impulses from the brain during the REM phase of sleep cause erections, whether you’re dreaming about sex or about a test you forgot to study for. Heavy lifting or straining to have a bowel movement can also produce an erection.
Just as the penis grows without your consent, sometimes it shrinks. The flaccid penis varies in size considerably within a given man. Exposure to cold water or air makes your penis shrink. That’s a function of the sympathetic nervous system.
Psychological stress also involves the sympathetic nervous system, and stress has the same effect as a cold shower, Montague says. When you’re relaxed and feeling well, your flaccid penis looks bigger than when you’re stressed out. Psychological stress can result in loss of libido and problems with erections. Both stress and anxiety are leading causes of temporary erectile dysfunction or ED. Being able to manage stress and control anxiety will help you get your erectile function back.
Of course, not all ED is caused by psychological problems such as stress. Physical problems such as atherosclerosis or high blood pressure can inhibit the flow of blood to your penis. Type 2 diabetes can damage both blood vessels and the nerves involved in getting an erection. Excessive alcohol consumption can also interfere with getting an erection.
The penis is kind of a dangling stress test and provides a window to the cardiovascular system including heart disease. So the greeting, “How’s it hanging?” is more apt than you might have realized.
No. 2: Your Penis May Be a ‘Grower’ or a ‘Show-er’
Among men, there is no consistent relationship between the size of the flaccid penis and its full erect length.
In one study of 80 men, researchers found that increases from flaccid to erect lengths ranged widely, from less than a quarter inch to 3.5 inches longer.
Whatever the clinical significance of these data may be, the locker-room significance is considerable. You can’t assume that a dude with a big limp penis gets much bigger with an erection. And the guy whose penis looks tiny could surprise you with whopper.

No. 2: Penis, penis on the wall who is the longest of them all
An analysis of more than a thousand measurements taken by sex researcher Alfred Kinsey shows that shorter flaccid penises tend to gain about twice as much length as longer flaccid penises.
A penis that doesn’t gain much length with an erection has become known as a “show-er,” and a penis that gains a lot is said to be a “grower.” These are not medical terms, and there aren’t scientifically established thresholds for what’s a show-er or a grower.
Kinsey’s data suggest that most penises aren’t extreme show-ers or growers. About 12% of penises gained one-third or less of their total length with an erection, and about 7% doubled in length when erect.
No. 3: Your Penis Is Shaped Like a Boomerang
Your penis is shaped like a boomerang. Just like you don’t see all of a big oak tree above ground, you don’t see the root of your penis tucked up inside your pelvis and attached to your pubic bone.
In an MRI picture, the penis looks distinctly boomerang-like, as noted by a French researcher who studied men and women having sex inside an MRI scanner.
One method of surgical “penis enlargement” is to cut the ligament that holds the root of the penis up inside the pelvis. This operation may give some men a little extra length if more of the penis protrudes from the body, but there are side effects. This ligament, called the suspensory ligament, makes an erection sturdy. With that ligament cut, the erect penis loses its upward angle and it wobbles at the base. The lack of sturdiness can lead to injury.
No. 4: Your penis is not a bone but it can break
There is no penis bone, but you can break your penis all the same. It’s called penile fracture, and it’s not a subtle injury. When it happens, there’s a snap, no crackle, but a pop that can easily be heard by the man his partner. Then the penis turns black and blue. And there’s terrible pain.
Penile fracture is rare, and it typically happens to younger men because their erections tend to be quite rigid.
Here’s how to avoid penile fracture: don’t use your penis too roughly. A common way that penile fracture happens is when a man is thrusting too hard and fast during sex, and slams into his partner’s pubic bone. Also, a woman who moves wildly while on top of a man during sex can break a man’s penis. Most of these penile fractures occurs when there has been too much alcohol consumed.
No. 5: Most Penises in the World Are Untrimmed
A report by the World Health Organization (WHO) and the Joint United Nations Program on HIV/AIDS (UNAIDS) estimates that worldwide only 30% of males are circumcised.
Rates vary greatly depending upon religion and nationality. Almost all Jewish and Muslim males in the world have circumcised penises, and together they account for about 70% of all circumcised males globally.
The United States has the highest proportion of males circumcised for non-religious reasons. A whopping 75% of non-Jewish, non-Muslim American men are circumcised. Compare that to Canada, where only 30% are. In the U.K. it’s 20%; in Australia it’s merely 6%.
The practice of circumcising baby boys for medical and cosmetic reasons has become controversial in the U.S. But recently the World Health Organization (WHO) and the UUNAIDS recommended circumcision for adult men, based upon evidence that men with circumcised penises have a lower risk of being infected with HIV.
Bottom Line: A man’s best friend is his penis. He needs to know that they come in different sizes and shapes but nearly all of them are able to perform their job if given a chance.

This article was excerpted from an article by Martin F. Downs and appeared in WebMD

http://men.webmd.com/features/5-things-you-did-not-know-about-your-penis?src=RSS_PUBLIC

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