<p>Ageism—the differential treatment of patients based on age—is a silent but pervasive threat to clinical excellence. Through the story of Ms. Thompson, a 72-year-old woman whose symptoms were dismissed as “normal aging” and whose cancer was diagnosed too late, this piece highlights the clinical consequences of unchecked age bias: missed diagnoses, undertreatment, and missteps in aligning care with what matters most to patients. Though often unconscious, ageist assumptions shape how we interpret symptoms, determine treatment plans, and communicate with older adults. Anchoring on age rather than individualized assessment compromises the precision and patient-centeredness that define high-quality care. This article explores how ageism is embedded in medical culture, training, and systems—and what clinicians, educators, and institutions can do to dismantle it. Addressing ageism is not just ethically urgent—it’s a clinical and financial imperative. Because one day, we too will be that older patient, worthy of the same excellence we strive to deliver.&#xa0;</p>