Christina Applegate Reveals Misdiagnosis After Years With MS Symptoms

Christina Applegate has learned that she does not have multiple sclerosis (MS), the condition she believed explained her declining health since early 2021. The 54-year-old actor disclosed the misdiagnosis during an October 20 episode of her MeSsy podcast, telling co-host Jamie-Lynn Sigler that she continues to experience severe symptoms despite the revised diagnosis.

According to Hello! Magazine, Applegate said a medical professional informed her that she did not have MS. However, the news brought no relief because her physical condition has not improved, leaving her and her doctors searching for another explanation.

MS is a disease that affects the central nervous system and damages the protective covering surrounding nerve fibers. Applegate said her ongoing symptoms have disrupted her professional and personal life, including her ability to walk independently.

Recalling the moment she received the revised diagnosis, Applegate described the medical professional's announcement during the podcast.

"She came into my room and said, 'Congratulations, you don't have MS,'" Christina recalled through tears. "I was, like, not happy at all. Everybody else was so happy."

Applegate explained that the new information has not changed her daily physical limitations. She said her symptoms remain severe and that she is still waiting for answers about what has happened to her health since 2021.

"You don't get misdiagnosed and then all of the sudden I'm better," Christina said.

She then emphasized that her condition has continued to deteriorate rather than improve.

"I haven't gotten better, Jamie! If anything, I've gotten worse."

Applegate said her medical team now faces the task of investigating the cause of her symptoms after the MS diagnosis was ruled out.

"So I'm back at square one where I don't know what's going on with me. And that's going to be an online investigation that my doctors are going to be getting into just to find out what has been going on since 2021, why did this happen?" Christina said.

The uncertainty has also taken a significant emotional toll. Applegate described experiencing depression and grieving the professional opportunities and everyday activities she has lost while dealing with her illness.

"I've gone through a great depression because of it. But I lost everything. I lost my job.

I lost — I'm sorry. What do you say to someone who's been living with this for six years — God, I'm so sorry — because it stopped my life."

She said her mobility remains severely restricted, requiring a wheelchair when visiting medical offices. The revised diagnosis has not restored her ability to walk the distances she needs to manage routine appointments.

"I still have to use wheelchairs when I go to the doctor's office. I can't walk from the car to the room. I'm still in this.

Nothing magical happened when she said, 'You don't have MS.' Nothing magical happened."

Applegate also discussed the emotional difficulty of having publicly associated her experiences with MS. She said the diagnosis had given her an explanation for her daily struggles, making its reversal especially confusing.

"It's weird because I feel like I let everybody down. It's this weird feeling because I became this — you and I, the poster children for MS. And everything I was doing."

She continued by describing how losing that explanation has complicated her understanding of her symptoms and the challenges she faces every day.

"I had a reason. I had a[expletive] reason as to why my day sucked every day. And now I don't have a reason and it's very unnerving and it's very confusing for me."

Applegate said she remains in a "state of shock" following the discovery and has spent the past several months processing the news. She characterized her continuing health difficulties as "the same game with a different name," emphasizing that the absence of an MS diagnosis has not brought relief from her symptoms.