Lili Reinhart at the opening of the STAUD Melrose Avenue Flagship on Oct. 23, 2025, in Los Angeles. Gilbert Flores/WWD/Getty Images Share on Facebook Share on X Google Preferred Share to Flipboard Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Send an Email Print the Article Post a Comment Lili Reinhart has revealed she's been diagnosed with endometriosis. The Riverdale actress opened up about her path to receiving the diagnosis on Instagram, where she revealed she learned the news "following laparoscopic surgery." "Last year, I saw a urogynecologist and was diagnosed with interstitial cystitis. I was told there was no cure - and no lasting relief - for my symptoms," Reinhart wrote. "Three hospital visits. Multiple urologists and gynecologists. And not one of them seriously considered endometriosis as the underlying cause of what I was experiencing." Related Stories General News Judi Dench Reveals She "Can't Recognize Anybody Now" Due to Eye Condition Lifestyle James Van Der Beek Auctioning Off 'Dawson's Creek' Items to Fund His Cancer Fight After working with "two different pelvic floor therapists" and "push[ing] for an MRI on my own," she was initially diagnosed with adenomyosis. Reinhart explained she then met with "an endometriosis specialist who helped me decide that laparoscopic surgery was the next step," despite a separate gynecologist telling her she "probably didn't have endo." Reinhart concluded, "I'm glad I trusted my body and listened to my gut and will continue advocating for others to do so." Mayo Clinic defines endometriosis as "an often-painful condition in which tissue that is similar to the inner lining of the uterus grows outside the uterus." The Clinic also notes that "endometriosis can cause pain, especially during menstrual periods" and "fertility problems also may develop," while treatment can aid the condition. Reinhart recently appeared in Uta Briesewitz's drama American Sweatshop and Cooper Raiff's comedy Hal & Harper. Moving forward in her career after starring in Riverdale for seven seasons, the actress told The Hollywood Reporter she's been "been very intentionally picky and selective about" what projects she wants to take on. "I'm pivoting what I'm doing with my career. I'm moving away from network television and into indie movies and that's kind of a big pivot and it takes time," she explained. "I've been patient and I'm thanking my fans who have also been patient and sometimes wondering, where are you? It's like, I want to make sure that I'm doing this until I'm 80 years old, and so each project has to have something special about it." Reinhart will next star in the film adaptation of Ali Hazelwood's The Love Hypothesis; Meredith Alloway's horror-comedy Forbidden Fruits; and Brian Swibel's feature directorial debut, The Very Best People. THR Newsletters Sign up for THR news straight to your inbox every day Subscribe Sign Up Paul Thomas Anderson Leonardo DiCaprio Remembers Paul Thomas Anderson Pitching Him 'Boogie Nights' as "the 'Raging Bull' of Pornography" Script2Comic Contest World War II Monster Story 'Kyojin' Tops Script2Comic Contest Awards How 'Come See Me in the Good Light' Director Ryan White Made Dying Funny Timothee Chalamet Timothée Chalamet to Receive Spotlight Actor of the Year Award at Palm Springs International Film Festival The Perfect Neighbor 'The Perfect Neighbor' Director on "Humanizing" Black Children in the Netflix doc Toni Collette 'Goodbye June' Review: Kate Winslet's Directorial Debut Is a Netflix Tearjerker Redeemed by a Stellar Ensemble Paul Thomas Anderson Leonardo DiCaprio Remembers Paul Thomas Anderson Pitching Him 'Boogie Nights' as "the 'Raging Bull' of Pornography" Script2Comic Contest World War II Monster Story 'Kyojin' Tops Script2Comic Contest Awards How 'Come See Me in the Good Light' Director Ryan White Made Dying Funny Timothee Chalamet Timothée Chalamet to Receive Spotlight Actor of the Year Award at Palm Springs International Film Festival The Perfect Neighbor 'The Perfect Neighbor' Director on "Humanizing" Black Children in the Netflix doc Toni Collette 'Goodbye June' Review: Kate Winslet's Directorial Debut Is a Netflix Tearjerker Redeemed by a Stellar Ensemble