Lizzie Kieffer is a physical therapist-turned-influencer with over 300,000 followers who shares women's health and fitness tips. On April 26, 2025, she announced via Instagram that her 12-month-old daughter, Lilian "Lily" Louise, had died suddenly on April 23.The family awaits further test results, drawing on faith for strength, and has asked for prayers and patience from its followers. Earlier, on March 2, she announced that she was expecting a third child, due in September 2025.Also Read: Wack100 claims Shannon Sharpe should 'step out with his boyfriend' amid ongoing $50M lawsuit.Who is Lizzie Kieffer, and how did she build her followingLizzie Kieffer began her online career by sharing physical therapy-based workouts and health advice tailored for women during and after pregnancy. She utilizes her background to post exercise demonstrations, recovery tips, and nutrition guidance, gaining over 300,000 followers across Instagram and TikTok. Followers have frequently turned to her for approachable, clinically informed content and candid updates on her family life. Lizzie Kieffer's audience values her down-to-earth tone grounded in professional expertise. View this post on Instagram Instagram PostHow she shared the news of her daughter's passingOn April 26, Lizzie Kieffer posted that "we are shattered" after discovering her daughter Lily had died on April 23.Lizzie Kieffer wrote, “Wednesday we woke up to a nightmare that we never imagined becoming our reality. Our Lily passed away”. View this post on Instagram Instagram PostThe post described how entirely unexpected the loss was, noting that Lily had shown no warning signs before her death. Lizzie's message conveyed deep grief. View this post on Instagram Instagram PostWhat doctors found and what comes nextFollowing Lily's death, doctors conducted an examination and discovered a large, asymptomatic brain mass.Lizzie Kieffer added,“came to learn that Lily had a large mass on her brain that we could have never known about as she never showed signs.We won’t know more answers with many of these things for months until further testing is done”.The family is awaiting the pathology and genetic results to understand the nature and origin of the mass. View this post on Instagram Instagram PostHow the family is remembering LilyIn an obituary, Lizzie Kieffer and her husband Matt wrote,“Lily brought a spark of pure joy to every heart she touched. Her name, meaning pure and beautiful, perfectly captured the essence of who she was”.They described Lily as,“a true Daddy’s girl, finding endless comfort and joy in her father's arms”.Her favorite moments included climbing into her ball pit, chasing her sister up the stairs, and riding in her little red car. View this post on Instagram Instagram PostHow Lizzie Kieffer and Matt are coping and leaning on faithLizzie wrote that amid pain,“we don’t have answers and we don’t know why this is God’s plan for our lives”But affirmed:“God is faithful and brings light to the darkest of places”.She asked followers for continued prayers and patience as she steps back from regular posting to focus on family healing. Support from friends, family, and followers has been noted as a vital source of comfort. View this post on Instagram Instagram PostAlso Read: "That's tough": Internet reacts as Twitch streamer Rogue proves his background isn't a green screen.How are they looking forward to their new baby?She has not shared many new details since the tragedy, but has expressed that Lily "will always, always be a part of us" and that talking about her "will sing through our days, bringing joy." The family continues preparations for the baby while honoring Lily's memory.Lizzie Kieffer's situation underscores how public figures navigate personal tragedy beyond the usual content of wellness tips. Her honest, straightforward updates, grounded in quotes like "we are shattered" and reliance on faith, resonate with many.While awaiting more medical answers, she and Matt balance mourning Lily with the anticipation of their third child. The influencer's journey remains a poignant reminder that grief and hope often coexist.Also Read: "Kanye's world, Kanye's rules": Internet reacts as Kanye West characterizes his world as a dictatorship rather than democracy.