A jade egg is a small, polished stone carved into an egg shape and marketed for insertion into the vagina. Sellers claim it strengthens pelvic floor muscles, balances hormones, improves bladder control, and enhances sexual health. Most medical professionals agree that jade eggs have no proven benefits and can actually cause harm. The product gained mainstream attention after Gwyneth Paltrow’s lifestyle brand Goop began selling them, but the claims behind jade eggs don’t hold up under scientific or historical scrutiny.
What Sellers Claim Jade Eggs Do
Jade eggs, also called yoni eggs, are typically sold in sets of different sizes, sometimes drilled with a hole for a retrieval string. They’re made from jade, rose quartz, obsidian, or other gemstones. The marketing pitch centers on a few core claims: that wearing the egg inside the vagina strengthens the pelvic floor, that the stone’s energy balances hormones, that it regulates menstrual cycles, and that it increases sexual pleasure and bladder control.
None of these claims are supported by clinical evidence. In 2018, Goop agreed to pay $145,000 in civil penalties after California’s Orange County district attorney’s office found that the company’s claims about its jade and quartz vaginal eggs were unsubstantiated. The specific claims cited in the settlement included that the eggs could balance hormones, increase bladder control, and regulate menstrual cycles.
The “Ancient Chinese Practice” Story Is a Myth
Nearly every jade egg retailer repeats some version of the same origin story: that empresses and concubines in ancient China used jade eggs for thousands of years to stay youthful and sexually powerful. This narrative is fabricated.
In 2019, a team of researchers reviewed more than 5,000 jade objects from Chinese art and archaeology collections looking for evidence behind the claim. They didn’t find a single vaginal egg. Their conclusion was that the ancient-use story is a “modern marketing myth.” A gynecologist originally trained in China confirmed this directly: no Chinese medicine texts or historical records ever mention the practice. The story gives the product an air of time-tested legitimacy it simply doesn’t have.
Why Gynecologists Say They’re Not Safe
The Cleveland Clinic’s position is straightforward: most medical professionals agree that yoni eggs aren’t safe. Any foreign body placed in the vagina can disrupt its normal function, and jade eggs carry several specific risks.
Pelvic Floor Damage
The central selling point of jade eggs, that they strengthen pelvic floor muscles, can actually backfire. To keep the egg from slipping out, you have to constantly clench. That sustained contraction can lead to pelvic floor hypertonicity, a condition where the muscles become too tight rather than stronger. The result is painful muscle spasms, not improved tone. Healthy pelvic floor function depends on muscles that can both contract and relax. An egg that forces continuous clenching trains only one half of that equation, and it’s the wrong half for many people.
Infection Risk
Jade and other gemstones look smooth and solid, but they’re actually semi-porous at a microscopic level. Nephrite jade contains networks of tiny pores, including spaces between and within mineral grains, connected by microfractures. These pores range in size but are large enough for bacteria to settle into and multiply. Because the stone can’t be fully sterilized (boiling can crack or chip it), cleaning with warm water and mild soap doesn’t reach bacteria harbored inside the stone’s surface. That makes infection a real concern with repeated use.
Cuts, Scrapes, and pH Disruption
Gemstones can develop chips or rough spots that scratch the vaginal walls. Even without visible damage to the stone, inserting and removing a hard, smooth object repeatedly can cause micro-tears and irritation. Any foreign object left in the vagina also disrupts its natural pH balance, which can encourage bacterial or yeast overgrowth.
Toxic Shock Syndrome
Leaving anything inside the vagina for extended periods raises the risk of toxic shock syndrome. Some jade egg instructions recommend wearing the egg overnight or for hours at a time. If the egg has caused even small scratches in the vaginal lining, bacteria can enter the bloodstream more easily, compounding that risk.
Retrieval Problems
Jade eggs are small, smooth, and slippery. They can be difficult to remove, especially without a drilled retrieval string. Getting the egg stuck is a real possibility that could require a medical visit.
Safer Alternatives for Pelvic Floor Health
If your goal is a stronger pelvic floor, the tools that actually work are less glamorous than a gemstone egg but far better supported by evidence. Kegel exercises, done correctly with both contraction and full relaxation, are the most widely recommended approach. A pelvic floor physical therapist can assess whether your muscles are too weak, too tight, or both, and create a targeted plan. Medical-grade pelvic floor trainers designed for internal use are made from non-porous, body-safe silicone that can be properly cleaned, and some use biofeedback to help you track your progress.
The appeal of jade eggs is understandable. They’re marketed with beautiful packaging, spiritual language, and a compelling (if fictional) backstory. But the gap between what they promise and what they deliver is wide, and the risks are concrete enough that gynecologists consistently recommend against them.