Bailey Renger was interning at NASA when, at 21, she had a cancer scare. “I had a solid mass, but they couldn’t tell me definitively whether or not it was malignant,” she recalls. She fought for more screening, but her insurance wouldn’t cover additional imaging.

“Why can we see to the edges of the universe,” she wondered, “but it’s so difficult to see two-and-a-half centimeters inside the human body?”

Today, Renger, now 26, is launching BeSound, a breast screening ultrasound startup that aims to catch what mammograms miss or insurance won’t cover. The startup raised $6.8 million, Fortune is the first to report. Its investors include Overwater Ventures, Kindred Ventures, and Muse Capital, as well as Lux Capital and Tom Hale, the CEO of Oura.

Like other consumer health startups—from Oura to Prenuvo—BeSound aims to reach the savvy consumer who is eager to take their health into their own hands. “Bailey’s vision for BeSound is exactly the kind of founder-led innovation that moves healthcare forward,” Hale tells Fortune.

Bailey Renger is the founder and CEO of BeSound. Courtesy of BeSound