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Penis enlargement has long been a topic of curiosity. And there are definitely plenty of gadgets and products out there — like penis weights — promising to increase penis size.
But do penis weights work? Can you stretch the penis using gravity?
Short answer: There’s little evidence to back the safety and effectiveness of penis weights.
In this article, we cover what penis weights are in more detail. And we outline what the research says about these devices.
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Penis weights are devices designed to stretch penile tissue by applying gentle pressure, typically using hanging weights or a heavy ball.
The goal? To gradually encourage elongation over time.
These devices attach to the penis with a strap or harness. You can position them near the head (AKA glans) or along the penis shaft.
Because there’s no formal research on penis weights, there’s no clear guidance on how long you should wear them.
The idea of stretching to achieve a bigger penis isn’t exactly new. Cultures around the world have experimented with penis enlargement and traction devices for thousands of years.
Ancient Egyptian Pharaohs may have used various weight-based stretching mechanisms to stretch out their genitals.
Going back almost 2000 years, people in India used penile and foreskin stretching.
Additionally, a technique called jelqing dates back to ancient Sudanese tribes in the Middle East. Some people still practice it today. It involves massaging a semi-erect penis from base to tip repeatedly, stopping before ejaculation and repeating.
There’s no proven scientific evidence that jelqing is effective, but some people believe it works like weightlifting — repeated tissue damage causes the body to create new tissue.
Penis weights supposedly work by tissue expansion. Tissue expansion is how doctors treat severe burns.
The thinking goes like this:
Apply gentle, consistent force to the penis.
Over time, the tissues stretch and grow.
Eventually, this supposedly leads to an increase in size by lengthening the spongy tissue inside the penis (AKA the corpora cavernosa).
But, there’s no evidence this method actually works.
There’s no evidence that penis weights can increase penis length.
And they may actually be dangerous if you use them incorrectly.
A 2023 case study reports the situation of a 24-year-old gym trainer who stuck his penis inside a 3 kilogram (6.6 pound) weight plate, hoping it would make his penis more muscular. Instead, he lost blood flow to the area and needed surgery to remove the weight.
Penile stretching with traction devices might be a potential treatment for Peyronie’s disease, a condition that causes a curvature of the penis. But you should consult a medical professional before trying anything on your own.
Ball stretching has become a popular online trend, with some claiming it boosts testosterone. But there’s no evidence to back this up.
Older research on rats suggests testicle stretching could damage the spermatic cord and even cause testicle shrinkage.
The evidence behind penis weights is slim, but can you stretch your penis to achieve greater length with traction devices?
Traction devices or "penis extenders” apply penile traction, a stretching force. Think of it like the force you apply to the lid of a marker to pull it off.
Traction might have a small impact on penile length in men with Peyronie’s disease.
In one recent study, researchers found that the RestoreX traction device increased penis length in 95 percent of men with Peyronie’s disease. Sixty-one percent of the study participants had curvature improvements.Those treated for 6 months saw an average increase of 2.0–2.2 centimeters (a little under an inch).
Another 2022 study suggests stretching devices may be able to increase penis length in men who have recently gone through prostate removal (slight shortening of the penis is a potential complication of this surgery).
But it’s not safe to stretch your penis with traction devices or penis weights without the supervision of a medical professional. And there’s no research to show these devices can help people without specific medical conditions.
The risks of using penis weights definitely outweigh the benefits. Let’s go over a few potential side effects.
There’s little to no reliable research focused specifically on the use and safety of penile weights. But, based on medical case studies and basic principles of anatomy, excessive stretching of any organ can potentially cause damage and lead to complications.
Overuse or improper use of penis weights can damage penile tissue, resulting in scarring that could impact your sexual health or ability to achieve an erection.
Applying a large force to the end of your penis could also potentially damage the ligaments at the base of the penis.
Unsurprisingly, penis weights can lead to pain and discomfort, ranging from mild soreness to more severe pain if you wear the device too long.
Pain with complete loss of blood flow due to weights getting stuck on your penis is a medical emergency that needs immediate treatment.
Improperly using penis weights or traction devices could cause nerve damage or circulation problems, which could lead to erectile dysfunction (ED).
Learn how to keep your penis healthy.
Your genetics largely determine penis size. While there aren’t many reliable ways to increase in size, there are options to boost your sexual health and enhance pleasure.
Here are some of these alternatives.
Penis pumps are devices that use vacuum pressure to temporarily help you achieve and maintain an erection. In the short-term, they may make your erection firmer and bigger than usual but can’t permanently lengthen your penis.
Some men opt for surgical procedures like penis enlargement surgery to increase penis size. But like many other types of surgery, these procedures come with risks including:
Scarring
Loss of sensation
Trouble with erectile function
Surgery is usually a last resort option.
Kegels are exercises for strengthening your pelvic floor muscles. They can potentially help improve bladder and bowel function. And some research suggests they may help treat ED or premature ejaculation.
But these exercises can’t make your penis longer.
Penile fillers, just like facial fillers, involve injecting substances like hyaluronic acid into the penis. They don’t increase length but can make your flaccid and erect penis look thicker. Possible risks include swelling, lumps, pain, and changes in appearance.
It's important to consult a healthcare professional to manage expectations and determine if fillers are suitable for you.
Maintaining a healthy lifestyle probably won’t make your penis bigger. But the following lifestyle changes may help you support your overall sexual health:
Exercising regularly
Eating a balanced diet
Getting adequate sleep
Taking steps to reduce stress
Getting help for psychological issues, such as performance anxiety or body dysmorphia
Concerned about the size of your penis or worried about your sexual function? It's a good idea to talk to a healthcare professional like a urologist.
They can provide reassurance that your penis is a typical size and tell you if you may benefit from medical treatment.
They can also recommend safe and effective treatment options for other sexual function issues, like ED.
Many herbal products and supplements market themselves as “penis enhancers,” but there’s no evidence that any penis pills can make your penis larger.
There’s no reason to believe penis weights can increase penis size, length, or girth. Let’s recap what we know about penis weights:
These devices can be harmful. Penis weights and traction devices can potentially lead to tissue damage.
Trendy products or methods are everywhere. Despite there being no research to back up their use, plenty of companies will try to sell you potentially dangerous penis enlargement products.
Penis traction may help people with Peyronie’s disease. But even then, it’s important to use the devices under supervision of a healthcare professional.
If you’re concerned about the length of your penis, consider talking to a healthcare provider. You might be surprised to learn that you fall into the typical size range.
Looking for help with other sexual function issues like ED? Connect with a Hims provider today.
Hims & Hers has strict sourcing guidelines to ensure our content is accurate and current. We rely on peer-reviewed studies, academic research institutions, and medical associations. We strive to use primary sources and refrain from using tertiary references. See a mistake? Let us know at [email protected]!
This article is for informational purposes only and does not constitute medical advice. The information contained herein is not a substitute for and should never be relied upon for professional medical advice. Always talk to your doctor about the risks and benefits of any treatment. Learn more about our editorial standards here.
Dr. Felix Gussone is a medical content specialist and Medical Advisor at Hims & Hers. Prior to joining Hims & Hers, Felix worked in digital health at Ro, focusing on patient education.
Raised in Germany, Dr. Gussone earned his M.D. from Ludwig-Maximilians-University before transitioning into health journalism and medical education content. He currently leads the medical information content team at an American biotech company.
Throughout his career, Dr. Gussone has used his medical expertise to drive the development of evidence-based health content and patient education materials. He has over 10 years of experience covering a wide range of topics, including health news, diet and weight loss, mental health, and sexual health, for prominent television programs and online publications.
Dr. Gussone has contributed to leading television programs such as CNN’s Anderson Cooper 360, NBC TODAY, and NBC Nightly News with Lester Holt, where he produced and wrote a wide range of health and wellness stories for television and digital outlets that engaged and informed diverse audiences across the United States and abroad. In addition to his work in cable and network health reporting, Felix served as Senior Health Editor at Elemental, Medium’s health and wellness publication, where he led editorial content development focused on science and personal well-being.
Dr. Gussone lives in Cambridge, Massachusetts and Brooklyn, and enjoys perfume making, scuba diving, roller blading, and traveling. You can find Dr. Gussone on LinkedIn for more information.