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Catherine O'Hara Cause Of Death Is Pulmonary Embolism; She Also Had Rectal Cancer

Catherine O’Hara’s cause of death is pulmonary embolism

<strong>Catherine</strong><strong> O'<span rel="noindex">Hara</span>'s cause of death</strong> is <span>pulmonary embolism</span>, confirmed medical examiner. She died on January 30 in a Los Angeles hospital, at the age of 71. The <span>Schitt</span>'s Creek star also had blood clot in her lungs and her death certificate also listed rectal cancer as the long term cause of death. 

She had been receiving treatment for the cancer since March 2025. 

<h2>Catherine O'Hara Cause Of Death: What Is <span rel="noindex">Pulmonary</span> Embolism?</h2>

As per the National Health Service (NHS), a pulmonary embolism is a life-threatening condition that happens when a blood vessel in the lungs is blocked by a blood clot. 

<ul><li>Difficulty in breathing</li><li>Chest pain</li><li>Cough up blood</li></ul>

The blood clot starts in a deep vein in the leg and travels to the lung in most cases. Rarely, the clot forms in a vein in another part of the body, noted Mayo Clinic. When a blood clot forms in one or more of the deep veins in the body, it is called a deep vein thrombosis or DVT. 

Other symptoms of pulmonary embolism include:

<ul><li>irregular heartbeat</li><li>lightheadedness or dizziness</li><li>excessive sweating</li><li>fever</li><li>leg pain or swelling, usually at the back of lower leg</li><li>clammy or discolored skin</li></ul>

As per Cleveland Clinic, about a third of people with a pulmonary embolism die before diagnosis and treatment, highlighting the condition's severity.

<h2>Catherine O'Hara Cause Of Death: She Also Had Rectal Cancer</h2>

Catherine O'Hara also was battling rectal cancer, which had been a long-term health challenge for her. The diagnosis was kept private. As per TMZ and The Associated Press, the diagnosis was kept private with only close family and her medical team aware of the details. Her struggle with cancer was not widely known, which made her news of rectal cancer more shocking to her fans and many in the industry. 

Rectal cancer is a serious and often aggressive disease. According to the Mayo Clinic and the American Cancer Society, it typically starts as abnormal growths known as polyps in the rectum and can require intensive treatment, including surgery, radiation, and chemotherapy. Colorectal cancer—which includes cancers of both the colon and rectum—remains one of the leading causes of cancer-related deaths in the United States. This year, nearly 50,000 people are expected to be diagnosed with rectal cancer, while colorectal cancer overall is projected to claim around 55,000 lives nationwide.

Rectal cancer too can increase the risk of developing blood clots, making complications like pulmonary embolism, more common among cancer patients. 

<h2>Catherine O'Hara Cause Of Death: She Was Born With A Rare Genetic Condition</h2>

Speaking in previous interviews, O'Hara revealed that she was born with a rare genetic condition called situs inversus. This means the organs are mirrored from their usual positions. Her heart, for instances, pointed to the right side of her chest, a condition known as dextrocardia. While this is a harmless condition, situs inversus could sometimes be associated with other complications.

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Catherine O'Hara's cause of death is pulmonary embolism, confirmed medical examiner. She died on January 30 in a Los Angeles hospital, at the age of 71. The Schitt's Creek star also had blood clot in her lungs and her death certificate also listed rectal cancer as the long term cause of death. She had been receiving treatment for the cancer since March 2025. Catherine O'Hara Cause Of Death: What Is Pulmonary Embolism?As per the National Health Service (NHS), a pulmonary embolism is a life-threatening condition that happens when a blood vessel in the lungs is blocked by a blood clot. The common symptoms may include:Difficulty in breathingChest painCough up bloodThe blood clot starts in a deep vein in the leg and travels to the lung in most cases. Rarely, the clot forms in a vein in another part of the body, noted Mayo Clinic. When a blood clot forms in one or more of the deep veins in the body, it is called a deep vein thrombosis or DVT. Other symptoms of pulmonary embolism include:irregular heartbeatlightheadedness or dizzinessexcessive sweatingfeverleg pain or swelling, usually at the back of lower legclammy or discolored skinAs per Cleveland Clinic, about a third of people with a pulmonary embolism die before diagnosis and treatment, highlighting the condition's severity.Catherine O'Hara Cause Of Death: She Also Had Rectal CancerCatherine O'Hara also was battling rectal cancer, which had been a long-term health challenge for her. The diagnosis was kept private. As per TMZ and The Associated Press, the diagnosis was kept private with only close family and her medical team aware of the details. Her struggle with cancer was not widely known, which made her news of rectal cancer more shocking to her fans and many in the industry. Rectal cancer is a serious and often aggressive disease. According to the Mayo Clinic and the American Cancer Society, it typically starts as abnormal growths known as polyps in the rectum and can require intensive treatment, including surgery, radiation, and chemotherapy. Colorectal cancer—which includes cancers of both the colon and rectum—remains one of the leading causes of cancer-related deaths in the United States. This year, nearly 50,000 people are expected to be diagnosed with rectal cancer, while colorectal cancer overall is projected to claim around 55,000 lives nationwide.Rectal cancer too can increase the risk of developing blood clots, making complications like pulmonary embolism, more common among cancer patients. Catherine O'Hara Cause Of Death: She Was Born With A Rare Genetic ConditionSpeaking in previous interviews, O'Hara revealed that she was born with a rare genetic condition called situs inversus. This means the organs are mirrored from their usual positions. Her heart, for instances, pointed to the right side of her chest, a condition known as dextrocardia. While this is a harmless condition, situs inversus could sometimes be associated with other complications.

catherine o'hara cause of death is pulmonary embolism; she also had rectal cancer

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Catherine O'Hara Cause Of Death Is Pulmonary Embolism; She Also Had Rectal Cancer

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Health Conditions A-Z

Catherine O'Hara Cause Of Death Is Pulmonary Embolism; She Also Had Rectal Cancer

ER Patients in Massachusetts Wait 3+ Hours on Average, Third-Longest in the US

Wegovy Pill: FDA Says The TV Ad By Novo Nordisk On Its Weight Loss Pills Are Misleading