Accessibility links

Breaking News

Lia, the Pregnancy Test You Can Flush

Lia, a Pregnancy Test You Can Flush
please wait

No media source currently available

0:00 0:02:02 0:00

Taking an at-home pregnancy test is stressful enough, but users also have to contend with how to discretely dispose of the test and its results. Now there's Lia, a pregnancy test that can safely disappear with the flush of a toilet.

Bethany Edwards and her co-workers spend a lot of time with pregnancy tests.

“We all peed on a lot of different things,” Edwards says, laughing. “So that’s been fun and interesting.”

Edwards is the co-founder and CEO of Lia Diagnostics. Together with co-founder Anna Simpson, Edwards and her team have created a new-and-improved pregnancy test called Lia.

Lia works like traditional, over-the-counter pregnancy tests, detecting the pregnancy hormone human chorionic gonadotropin (hCG) in urine.

But unlike traditional tests, Lia is made of paper instead of plastic and is 100 percent biodegradable in 12 weeks, its creators say.

“We’re really bringing together a solution that is better for women but also better for the planet,” Edwards said.

Flushable, biodegradable

Born out of research conducted during their graduate studies at the University of Pennsylvania, Lia’s creators say it’s the first flushable and biodegradable pregnancy test developed. The product recently obtained clearance from the U.S. Food and Drug Administration (FDA).

Lia breaks down like toilet paper and can be flushed in standard-flow sewer or septic systems.

Creating a paper test that could hold up long enough to test urine samples but eventually disintegrate after flushing was a major challenge.

“We really had to develop our own coatings, proprietary coatings, to allow the paper and the materials that we’re using to hold up in use but also be able to break down quickly after you’re done,” Edwards said.

“It’s kind of a very counterintuitive sort of thing,” she added. “You want something that has rigidity and structure, but then after you’re done with it, doesn’t, and is able to become flimsy and separate in water.”

Edwards demonstrated by wetting a Lia prototype under a faucet. In the section that tests urine samples, the water was absorbed, while along the outer edge, a water droplet remained intact.

The test eventually soaked up even more water, becoming pliable enough for its two paper layers to easily separate. Lia’s paper layers are crimped and held together by force, not glue, which helps it dissolve. Users can speed up the breakdown process by tearing the test in half, at notches near the center.

In addition to being better for the environment, a flushable test has major implications for women’s privacy.

“We know that there’s sometimes fear around getting and obtaining a pregnancy test,” Edwards said. “Those extra efforts or having to ask somebody, the judgment in that is sometimes enough to have somebody not take a pregnancy test as soon as they should.”

“Lots of women tell their stories about hiding pregnancy tests in trash, trash cans, taking them in public restrooms, wrapping them in tinfoil and hiding them in other garbage cans. I mean, some extreme stories,” she added.

Privacy concerns

Dr. Meera Shah, a physician based in New York and a fellow at Physicians for Reproductive Health, spoke of teenage patients whose privacy was compromised when their parents discovered pregnancy tests in the trash. The safety of domestic violence victims can also be potentially threatened by the discovery of a disposed test.

“I’ve had patients tell me that their partners found their pregnancy test in the trash can, and that put them at risk for further abuse at home,” Shah said.

“I think that a discreet pregnancy test can empower women and empower people to be able to take a test without worrying about outside interference,” she said. “That has the potential to further engage them with the reproductive health care that they need after that.”

Cost is another important factor for women.

“Often times I hear that pregnancy tests can be expensive,” Shah said. “I tend to work with lower-income patients, patients who have poorer access to reproductive health care services, and so I think cost can be a barrier.”

Lia will be available in the third quarter of 2018 and sell for between $7 and $8, comparable to pregnancy tests currently on the market.