Up to 20% of MS diagnoses may be wrong, like Christina Applegate's

“The CBS News report highlights that up to one in five people diagnosed with multiple sclerosis (MS) may actually be misdiagnosed, a statistic underscored by actress Christina Applegate’s own experience. The article explains that MS lacks a definitive test, relying instead on MRI findings that can be mistaken for other conditions such as high blood pressure or migraines. Experts advise patients to seek second opinions and advanced imaging or spinal fluid analysis when symptoms persist or treatments fail. In the U.S., this misdiagnosis rate has significant implications for healthcare costs, insurance coverage, and patient quality of life, as many may receive unnecessary treatments or miss timely interventions for the correct condition. Expert Analysis: The prevalence of MS misdiagnosis underscores the need for stricter diagnostic protocols and better reimbursement models for advanced imaging, potentially reducing long‑term healthcare expenditures and improving patient outcomes across the U.S. health system.”