The model and Rhode founder has talked before about the difficulty of premenstrual dysphoric disorder, a more severe form of premenstrual syndrome.

Hailey Bieber at the 2026 CFDA Fashion Awards held at The American Museum of Natural History on November 2, 2026 in New York, New York. John Nacion/WWD

Hailey Bieber has been an open book when it comes to the joy of motherhood, but she has also been very frank about some of the challenges of raising son Jack Blues with husband Justin Bieber . In a new interview with Women’s Wear Daily , the 29-year-old model and founder of Rhode cosmetics talked about her struggle with premenstrual dysphoric disorder (PMDD), a severe, hormonally driven mood disorder that is a more intense form of premenstrual syndrome.

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“After I had my son, I struggled with [PMDD] a bit, and there’s just not a lot of conversation or research around it,” said Bieber.

According to Johns Hopkins Medicine , PMDD is a severe and chronic health condition…