‘Dead to Me’ Star Christina Applegate Shares Shocking Update on Her MS Diagnosis

Christina Applegate has been one of the most visible voices in the multiple sclerosis community since she shared her diagnosis in 2021. The ‘Dead to Me’ star retired from acting after the series ended, and she turned to advocacy, speaking candidly about life with a chronic condition. That’s what makes her latest announcement so striking.

In 2024, she launched the ‘MeSsy’ podcast with Jamie-Lynn Sigler, who has lived with MS for decades. The show gave the two actors a space to talk about symptoms, relapses, and everyday struggles, with friends and co-stars as guests. It became a touchstone for many listeners with MS, and it went on break on March 31 while Applegate was hospitalized, according to People.

Now she has returned with news nobody expected. In a two-part episode released on Tuesday, October 20, Applegate said she was misdiagnosed and does not have multiple sclerosis. TMZ broke the story, and outlets from CBS News to Variety have since confirmed it based on the episode.

Applegate, who is 54, explained that she had been away from the podcast for seven months and needed time to process the information. According to Variety and the Washington Times, new technology led to the discovery. She said her doctor told her she doesn’t have MS, a moment she described as far from a relief, since everyone else around her was so happy and she wasn’t.

The reason is simple: her symptoms haven’t gone away. Applegate said she still has every symptom of someone with MS, that some have worsened, and that doctors are now looking into what else could be going on. She told listeners she feels like she’s back at square one, a phrase that has been widely quoted in coverage of the episode.

Christina Applegate revealed she was misdiagnosed with MS after being diagnosed in 2021. She talked about the emotional impact of the news on her MeSsy podcast, explaining that her symptoms have not improved as doctors investigate the cause of her ongoing health issues https://t.co/91g8DdUITG

— MEAWW Entertainment (@meawwofficial) October 20, 2026

CBS News reports that when she was first diagnosed, she underwent tests including a spinal tap and MRIs. After a treatment stopped, her cell count didn’t change, which began a study into her diagnosis.

The announcement came with a lot of emotion. Applegate tearfully described the news as bringing confusion and depression rather than comfort. She said she felt like she had let people down after becoming such a prominent advocate for the MS community, and she thanked friends and family, especially her daughter, for standing by her.

The second episode brought in expert context. Dr. Marwa Kaisey, an associate professor of neurology at Cedars-Sinai Medical Center in Los Angeles, joined Applegate and Sigler and said Applegate isn’t alone in being misdiagnosed. Applegate herself noted that many conditions mirror MS and that misdiagnoses aren’t rare.

For now, the situation is more of a question mark than an answer. Applegate hasn’t named an alternative diagnosis, and the coverage makes clear that her daily challenges, including pain and mobility issues, remain the same. She has been open for years about how difficult life with these symptoms is, and she was previously seen at public events using a cane.

Her story is a reminder of how complicated diagnosing neurological conditions can be. MS, according to the National Multiple Sclerosis Society, is a disease in which the immune system attacks the central nervous system, with symptoms that vary from person to person. When other conditions can look similar, patients can spend years searching for answers.

What happens next for the podcast hasn’t been spelled out beyond its return. What is clear is that Applegate is continuing to share her journey in public, just as she has since 2021, with the same honesty that made listeners connect with her.

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