The Top 5 Reasons for a Shrinking Penis

5 min read

four cactuses on brown background that look like penises and appear to be shrinking


Most men have no idea that their penises can actually shrink over time. Wait . . . what, say that again?! That’s right! Your penis can and most likely will shrink as you age. But, all is not lost, you can prevent and even reverse penile shrinkage.

The thought of losing penile length is not a pleasant one for most men. Actually, it’s downright terrifying. There is no single aspect of the human body that plays such a critical role in defining a man’s identity as his penis. A well-endowed man is often associated with greater masculinity, vigor, and sexual prowess. The bigger the penis, the better the man. At least that’s what modern American culture teaches us. But, what is defined as small, medium, or large?


Normal penis size is up for interpretation. While many studies have been conducted over the years, Alfred Kinsey is conducted one of the most comprehensive studies to date. Kinsey examined more than 3500 penises and found that the average flaccid length was 8.8 centimeters (3.5 inches), the average erect length ranged between 12.9 -15 centimeters (5-6 inches) and the average circumference of the erect penis was 12.3 centimeters (4.75 inches). Those numbers may surprise some men. More interestingly, 85% or so of women are perfectly satisfied with their partner’s penile size, while only 55% of men are satisfied with their own penis size.

So, what does this tell us? A couple things. First, the average penis size is probably smaller than most men think. And, second, men are more concerned about the size of their penis than their sexual partners are. But whether you think you are small or large, no man wants his penis to shrink. That’s just a fact. Here’s the five reasons your penis shrinks over time and what you can do to prevent it.



Many men wonder if their penis shrinks when they gain weight. Unfortunately, it is true that gaining weight can reduce penis size. As your belly grows, the penis is physically pulled into the body. Not only does the penis appear shorter when a man’s belly increases in size, but it actually loses length, because it is unable to extend farther from the body. While penile length remains intact, the bulk of the penis becomes trapped in the body’s fat pad.  It’s estimated that for every 35 pounds of weight gain, there is a one-inch loss in apparent penile length!

SOLUTION: Stay in shape and maintain a healthy diet. While we hear that advice all the time, nobody actually says your penis might shrink if you don’t. Sounds like an effective marketing campaign for healthy eating


If you don’t use your penis, it will shrink. It’s true. Like any other part of the human body, the penis needs to be exercised on a regular basis. What does that mean? Have sex regularly. Masturbate often. Get erections and use them. Yes, that right, those activities are actually good for you. Your body is designed for it. In fact, if one goes too long without an erection, collagen, smooth muscle, elastin, and other erectile tissues may begin to deteriorate, resulting in a loss of penile length and girth and limiting one’s ability to achieve an erection. In a vicious cycle, loss of sexual function can lead to further progression of the problem as poor genital blood flow causes low oxygen levels in the genital tissues.

SOLUTION: Exercise your penis by being sexually active on a regular basis. In addition, one of the best ways to keep your penis in great shape is to exercise your pelvic muscles.


Broken penis. Yep, this one is also true. You can break your penis, and it’s very dangerous. It often occurs during sex when the penis is accidentally jammed against the woman’s pelvic bone, causing the cartilage in the penis to fracture. Breaking the penis can be an emergency situation that requires surgical repair, which is not only necessary to stop the bleeding and repair the damage, but also to prevent the potential for Peyronie’s disease. Peyronie’s disease affects about one in 100 men and is a condition that causes the penis to curve, resulting in penile shortening, deformity, angulation and pain.

Peyronie’s disease is caused by both major traumatic injury to the penis and by the cumulative effects of chronic penile micro-traumatic injuries from sexual activities.  Scar tissue, which is hard and inelastic , builds up in the penis and prevents proper expansion of the erectile chambers. In the early phases of the disease, most men notice a painful lump or hardness in the penis when they have an erection as well as a bent or angulated erect penis. In its more mature chronic phase, the pain disappears, but the hardness and curvature persist, often accompanied by penile shortening and narrowing. As a result of Peyronie's disease, many men are unable to obtain and maintain an erection.

SOLUTION: be careful when having sex. If you notice a painful lump, a bend, shortening and deformity, see a urologist for management as the Peyronie's is treatable once the acute phase is over and the scarring stabilizes.  If you experience a penile fracture after a miss-stroke—marked by an audible pop, acute pain, swelling and bruising—head to the emergency room ASAP.


Prostate cancer affects one in nine men. Think about it, that is a huge number! Older men and African-American men are most likely to be diagnosed. About 6 cases in 10 are diagnosed in men who are 65 or older, and it is rare in men under 40. The average age at diagnosis is about 66.

While it is critical to remove the cancer to save lives, prostate surgery often results in decreased penile length and girth. This occurs because nerves and blood vessels to the penis that run in the gutter between the prostate gland and the colon are damaged. This damage can cause erectile dysfunction, which leads to disuse atrophy, scarring and penile shrinkage.

SOLUTION: Resuming sexual activity as soon as possible after prostate surgery will help “rehabilitate” the penis and prevent disuse atrophy. There are a number of effective penile rehabilitation strategies to get “back in the saddle” to help prevent disuse atrophy including strengthening the male pelvic muscles and using a high-quality Vacuum Erection Device  (Add link to Private Gym Size and Girth Program)



Low testosterone can lead to penile atrophy and shrinkage. It’s just a fact. We hear about the need to increase testosterone levels all the time, but did you know that many men have to purposely reduce testosterone levels as part of their prostate cancer treatment? Androgen Deprivation Therapy is a common means of suppressing the male hormone testosterone, used as a form of treatment for prostate cancer. Because testosterone is an important hormone for maintaining the health and the integrity of the penis, the low testosterone levels resulting from such therapy can result in penile atrophy and shrinkage. 

SOLUTION: This is a tough one.  Because of the resulting low testosterone levels, most men have a diminished sex drive and simply lose interest in sex and “use it or lose it” becomes challenging. Furthermore, many men on this therapy have already had a radical prostatectomy and or pelvic radiation therapy, so often have compromised erections even before using androgen deprivation therapy. Some of these men are able to maintain erections and prevent penile shrinkage by using a high-quality Vacuum Erection Device. There are many effective natural solutions to combat low testosterone, including our SupporT Natural Testosterone Booster.

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