Catherine O'Hara's Cause of Death: Understanding Pulmonary Embolism and Rectal Cancer
What Is a Pulmonary Embolism? Understanding the Life-Threatening Condition Linked to Cancer Learn what a pulmonary embolism is, recognize the warning signs, and understand why cancer patients are at higher risk. Know the symptoms that could save your life. MEDICAL DISCLAIMER: This article is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. If you experience symptoms of a pulmonary embolism, call 911 immediately. Always consult with your healthcare provider regarding any medical questions or concerns. Recent news about beloved actress Catherine O'Hara has brought renewed attention to a life-threatening medical emergency that affects nearly 900,000 Americans every year: pulmonary embolism. On February 9, 2026, her death certificate revealed that the Emmy-winning "Schitt's Creek" and "Home Alone" star died from a pulmonary embolism, with rectal cancer listed as the underlying cause. This tragi...