Hailey Bieber has opened up about the serious health condition she was diagnosed with before her pregnancy.
The 29-year-old model opened up about welcoming her 16-month-old son, Jack Blues, with husband Justin Bieber during Tuesday’s episode of the SHE MD Podcast, hosted by Mary Alice Haney and Dr. Thaïs Aliabadi, who is also Hailey’s OB/GYN. During the conversation, Haney asked Hailey if she and Justin were “trying” to get pregnant.
“It was a surprise. She told me this was going to happen because she was like,” Hailey said, pointing at Aliabadi, who chimed in: “I told her, ‘Don’t get pregnant!’”
Hailey then shared that before her pregnancy, Aliabadi told her she had “a septum in [the] uterus,” which was a cause for concern.
“Dr. A kept saying, ‘Well, we need to look at this and keep an eye on it before you get pregnant because it could potentially be an issue. I don’t really know. We’ve got to see. I might have to give you a small surgery for it. Not sure,’” the Rhode founder continued. “And I was like, ‘Okay. Well, I’m not thinking about getting pregnant right now, so we’ll just cross that bridge when we get there.’ And then I magically got pregnant.”
“And then she calls me, and she’s like, ‘I’m pregnant!’” Aliabadi added. “And I’m like, ‘No!’”
Aliabadi went on to explain that a uterine septum is a genetic condition. “Imagine you have a normal-shaped uterus,” she said. “But inside the cavity of the uterus, imagine this little wall that comes in, this thin wall that comes in. You can have a mild, moderate or a severe septum.”
Septums are measured during an ultrasound. Hailey’s was deemed moderate, measuring at one to two centimeters, Aliabadi explained. Depending on the severity of the septum, women can be more at risk of miscarrying during pregnancy.
Aliabadi continued, noting that “the risk for [Hailey] was about maybe 25 to 40 percent risk of miscarriage,” adding that she also had “a 10 to 20 percent risk of preterm delivery.”
“Which I think was our bigger scare,” Hailey added. “Because we realized as the baby was growing, the septum was, you know, expanding. Everything was opening and doing what it needed to do, luckily.”
The Cleveland Clinic reports that women often don’t know if they have a uterine septum, also called a septate uterus, until they’re pregnant or trying to get pregnant. Although a septate uterus is rare, it’s still one of the more common uterine abnormalities, affecting 1.5 in 100 women in the world.
Hailey has previously spoken out about her experience giving birth to her son. During an interview with Vogue in May 2025, she said giving birth “the hardest thing I’ve ever done,” and recalled how she was leaking amniotic fluid and was induced when she was 39 weeks pregnant.
“That s*** was so crazy. That was not fun. They broke my water. I went into labor, and I labored for a few hours. No epidural, nothing,” she said.
After 18 hours, Jack was born, but Hailey suffered complications. She had a postpartum hemorrhage, which is severe or excessive bleeding after childbirth. Following several procedures to get the bleeding under control, Hailey was able to hold and spend time with her newborn son.
