Inch by Inch: The Great Penis Shrinkage: Why a man's best piece gets smaller with age


Inch by Inch: The Great Penis Shrinkage: Why a man's best piece gets smaller with age

9.16 centimeters - that's how long an average penis is in normal condition. If he is erect, the average man is 13.12 centimeters. However, not for life. Because age is not only noticeable through thinning hair on the head, but also between the legs. The penis shrinks.

"You give it away the way you got it," a patient is said to have said about his penis to Marc Birkhahn, a specialist in urology and andrology in Cologne, as he explains in a YouTube video. What is meant by this is that the patient's penis length decreases, to put it bluntly: from adult size back to child size. The patient did not imagine it. There are no really good studies on penis shortening in old age, but according to Birkhahn's observation, the penis actually gets one to two centimeters smaller over time.

This is called penile atrophy. Atrophia roughly means "emaciation" or "emaciation". It is a reduction of the penile tissue. The penile function is also often restricted in this context. Older people over the age of 60 are mostly affected.


Testosterone is mainly made in the testicles. Among other things, the hormone plays a key role in the development of the male sex organs. Testosterone levels decrease with age. The consequences of this can be erection problems and listlessness. The less testosterone is produced in the testicles, the smaller the testicles become. And: "Due to the lack of testosterone, the penis also shrinks," says urologist Birkhahn.

connective tissue

With increasing age, the elasticity of the connective tissue decreases. This affects the entire body, but also the connective tissue that makes up the erectile tissue in the penis. In the worst case, this can lead to fibrosis, i.e. a stiffening of the erectile tissue. Birkhahn explains: "If the erectile tissue stretches less, the penis length is also smaller, especially when erect, but also when resting. Fibrosis is a huge factor that can lead to penis shortening."

Age-related diseases

Clogged blood vessels, known as atherosclerosis, can also be a factor in the penis not being as large as it used to be. Because less blood flows into the penis, it loses volume and becomes thinner. "Penises shrink with age - just like they lose volume in your face and neck," US urologist Edward Zimmerman told Buzzfeed. Zimmerman has become an internet phenomenon as "dickdocontiktok" with his Tiktok video clips on penis health.


Prostate enlargements can also lead to a shortening of the penis – at least from a purely visual point of view. The prostate is located above the urethra, and if it enlarges, according to Birkhahn, this means that the penis, so to speak, pulls itself into the body. Such a shortening can also occur after prostate surgery, for example in the case of cancer.


Injuries can also affect penis length. Birkhahn speaks, for example, of unfavorable shearing movements and kinking of the penis, which can lead to injuries such as tears in the cavernous skin inside. These in turn lead to scarring, which leads to a shortening.

weight gain

Most commonly, however, a decrease in penis length is associated with weight gain. If more fatty tissue is built up, this causes the visible part of the penis to appear smaller. He's going undercover. In the case of extremely fat people, this can even go so far that only a very small part of the penis is visible, says Birkhahn - "this is also called a 'buried penis'".

"You lose girth down below and also length if you rarely use it," explains "Dickdoc" Zimmerman. That means sex helps. If erectile problems are increasing, this can be an indication that fibrosis is progressing and should be treated. Sport is also said to help against penis shrinkage. On the one hand because, according to the urologist Birkhahn, exercise helps to increase the testosterone level, on the other hand because it reduces the fat content in the body and the aforementioned "buried penis" can be prevented. The urologist recommends that people who are predisposed to prostate enlargement use herbal remedies to prevent it. For example with rye pollen extract.

Quelle: BJU INternational, Youtube: Urologie am Ring, dickdocontiktok, Buzzfeed, Medlexi