Jamie-Lynn Sigler reveals she hid MS symptoms while filming The Sopranos, credits Christina Applegate for helping her 'let go of the BS'

Key facts

• Sigler was diagnosed with multiple sclerosis at age 20, weeks before filming The Sopranos' third season.
• She kept her diagnosis secret for nearly 15 years, fearing it would cost her acting career.
• Her symptoms included numbness, difficulty walking, paralysis from the waist down, and incontinence.
• She went public with her MS diagnosis in January 2016, after the birth of her son Beau.
• In August 2024, Beau was hospitalized for 33 days with acute disseminated encephalomyelitis (ADEM), a rare autoimmune disorder.
• Sigler moved with her family to Austin, Texas in 2021 to gain privacy and escape the Hollywood spotlight.
• She and Christina Applegate co-host the podcast 'MeSsy' about living with MS.

A secret carried for 15 years

Jamie-Lynn Sigler, now 44, first noticed symptoms of multiple sclerosis at age 20, just weeks before filming the third season of The Sopranos. The numbness in her legs, which sometimes led to paralysis from the waist down, was initially misdiagnosed as Lyme disease. Terrified of losing her role as Meadow Soprano, she concealed her condition from cast and crew, burying the diagnosis under layers of denial. For 15 years, she managed uncontrollable spasms, a pronounced limp, and even incontinence while performing a very public job. She wrote in her memoir, And So It Is…: A Memoir of Acceptance and Hope, that she once lost control of her bowels before appearing on the Today show, cleaned herself up, and walked on set as if nothing had happened.

The courage to be vulnerable

Sigler credits fellow actress Christina Applegate, who also has MS and was hospitalized last month, with giving her the courage to share her story openly. 'Christina helped me see the impact I could have by sharing deeply and being vulnerable,' Sigler wrote. 'Because she was ready to share in such a raw way, I had to match the radical candor she was bringing to the table.' Together, they launched the podcast 'MeSsy,' a space to speak candidly about their health and lives. Applegate said of Sigler, 'If I didn't have her, I wouldn't be able to do this life thing.' Sigler now says she is no longer hiding anything: 'That girl in 2016 who told people she had MS is not that girl that's here now.'

A son's miracle and a mother's strength

In August 2024, Sigler's son Beau, then 10, was hospitalized for 33 days and diagnosed with acute disseminated encephalomyelitis (ADEM), a rare autoimmune disorder. Sigler became his full-time caregiver, calling on strength she did not know she had. 'I remember just getting on my knees in pure surrender like, God, I have nothing left. I need help,' she said. Beau's recovery, which she describes as a miracle, changed their family. He told her, 'I went through this for you. You needed to see a body get better. You needed to see a miracle.' Nearly two years later, Sigler says they are still 'putting the pieces together' but feel grateful and present.

Leaving Hollywood behind

In 2021, during the Covid pandemic, Sigler moved with her husband, former baseball player Cutter Dykstra, and their two sons, Beau and Jack, from California to Austin, Texas. She told Us Weekly that she needed a change and wanted more privacy as she battled MS. 'When I moved here, I started using a cane once in a while because I didn't feel like I was being watched,' she said. In Austin, she felt she was 'just Beau and Jack's mum at the baseball field.' She told People in 2022 that she felt 'disconnected, in the best way I've ever known' and that her sons were 'thriving' and spending more time outdoors.

The toll of secrecy and the path to authenticity

Hiding her MS took a heavy toll on Sigler. 'I was always acting. I had no idea what authenticity felt like,' she said. 'Everything was a lie and for show. I didn't even know who I was.' Her 'secrets had piled up' and she felt like she was 'suffocating.' It was only after the birth of her son Beau in 2016 that she decided to go public. Now, with her memoir, she hopes to show others that pain does not have to break you. 'Your pain can break you free. Your pain can open your heart,' she said.

A friendship forged in shared struggle

Sigler's bond with Christina Applegate has deepened through their shared experience with MS. In April, Applegate addressed fan concerns after a hospitalization, writing on Instagram: 'Health issues are a constant for me, but I'm a strong chick, and I'm getting stronger and better every day.' Sigler echoed that optimism on Good Morning America, saying Applegate is 'doing a lot better' and is 'a tough lady.' Both women continue to use their platforms to raise awareness and inspire others. Sigler's husband, Cutter Dykstra, tells her that people feel her openness and love because of what she has been through. 'That's the gift I want to give other people,' she said.

The bottom line

• Jamie-Lynn Sigler concealed her MS diagnosis for 15 years while starring on The Sopranos, fearing it would end her career.
• Her symptoms included numbness, paralysis, and incontinence, which she managed in secret, even during live TV appearances.
• She went public with her diagnosis in 2016 after the birth of her son Beau.
• In 2024, Beau was hospitalized for 33 days with ADEM, a rare autoimmune disorder, and made a full recovery.
• Sigler moved her family to Austin, Texas in 2021 to gain privacy and escape the pressures of Hollywood.
• She and Christina Applegate co-host the podcast 'MeSsy' and support each other in living openly with MS.