Osbourne Says He Feels Like a Fraud

Jack Osbourne, diagnosed with multiple sclerosis in 2012, said on a podcast that he feels out of place at MS events.

Updated on Nov. 3, 2026 in Alzheimer’s

Jack Osbourne said he feels like a fraud attending multiple sclerosis events, because his symptoms have not affected him to the same extent as others living with the disease. He made the remarks on the MeSsy podcast, co-hosted by Christina Applegate and Jamie-Lynn Sigler.

Why it matters

Osbourne's comments highlight how widely MS symptoms vary between patients, a point Jamie-Lynn Sigler noted when describing the disease's wide spectrum of effects. Applegate, who was misdiagnosed with MS in 2021, said she still considers herself part of the MS community.

Osbourne was first diagnosed with multiple sclerosis in 2012, and has lived with the condition for 14 years. His account is a personal one, and no clinical measures of his disease course were provided in the source.

The players

Jack Osbourne

Jack Osbourne is a television personality and author, the son of Ozzy and Sharon Osbourne, who has spoken publicly about living with multiple sclerosis since his 2012 diagnosis.

Christina Applegate

Christina Applegate is an actress known for Married... with Children and Dead to Me, who has been open about her own multiple sclerosis experience, including a 2021 misdiagnosis.

Jamie-Lynn Sigler

Jamie-Lynn Sigler is an actress best known for playing Meadow Soprano on The Sopranos, who has lived with multiple sclerosis and advocates for awareness of the disease.

The details

Osbourne said that when he attends MS events he often meets people diagnosed more recently and whose symptoms are more severe than his own. He described his condition as one that has not stopped him, though it has slowed him at times, and noted that Applegate's 2021 misdiagnosis underscores how variable the disease can appear.

2012: Jack Osbourne is first diagnosed with multiple sclerosis.
2021: Christina Applegate is misdiagnosed with multiple sclerosis.
November 3, 2026: Osbourne's comments are published in an EW article.

Health Landscape

Public disclosures by celebrities such as Christina Applegate have drawn attention to multiple sclerosis in recent years, and Osbourne's comments add to that conversation about how differently the disease affects patients. The variation he describes is consistent with what Sigler has said about the disease's wide spectrum of effects.

Patients living with multiple sclerosis may experience very different symptom patterns, which means personal experiences can vary widely from one person to the next. Readers who are newly diagnosed or supporting someone with MS can find that their own course may not match public accounts.

The takeaway

Osbourne's account is a reminder that the course of multiple sclerosis differs widely between people, and that comparing one's symptoms to others' can be misleading. Anyone with questions about their own diagnosis is best served by discussing it with a neurologist.