Christina Applegate Says She Was Misdiagnosed With MS: “Back at Square One”

Christina Applegate says her doctor has reversed her MS diagnosis, but her disabling symptoms remain. Her account highlights the uncertainty that can follow a changed diagnosis.

Christina Applegate

Christina Applegate says her doctor has told her she does not have multiple sclerosis, five years after she publicly announced the diagnosis. But the change has not brought an end to the symptoms that have disrupted her life.

The actress, known for Married… with Children and Dead to Me, discussed the news on October 20, 2026, on MeSsy, the podcast she co-hosts with actress Jamie-Lynn Sigler. According to ABC News, Applegate said she remains physically impaired and that doctors are still working to understand the cause.

A changed diagnosis, continuing symptoms

Applegate first shared her MS diagnosis in 2021. Now, she says, she is facing another search for answers.

“I’m back at square one where I don’t know what’s going on with me,” she said, according to The Associated Press.

She said she continues to need a wheelchair for medical visits because walking from the car to the examination room is too difficult. The revised diagnosis, in her telling, has not changed those limitations.

Scripps News reported that Applegate described her physician reassessing the original diagnosis after a period without infusion treatments. That account is Applegate’s description of her care; the reports do not establish a new explanation for her symptoms.

Why the news did not feel like relief

Applegate also described feeling unsettled about her place in the MS community after speaking publicly about the condition for years. ABC News reported that she took time away from the podcast to process the news and spoke about depression and confusion.

Her account raises a question beyond the headline: What does it feel like to lose an explanation for an illness while still living with its effects?

A diagnosis can become part of how someone explains their needs, finds support and makes sense of daily limitations. When that explanation changes, loved ones may hear good news while the person experiencing the symptoms is left with new uncertainty.

In Applegate’s case, the distinction is straightforward: She says the diagnosis was wrong. She has not said the symptoms disappeared.

This story is based on Applegate’s publicly reported account and reporting by ABC News, The Associated Press and Scripps News. No replacement diagnosis has been identified in those reports.