Beloved Actress Catherine O'Hara Dies at 71

Pulmonary Embolism Linked to Underlying Rectal Cancer

Published on Feb. 9, 2026

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The entertainment world is mourning the loss of beloved comedic actress Catherine O'Hara, who passed away on February 9th, 2026 at the age of 71. While initially reported as a sudden passing, details released today confirm the cause of death was a pulmonary embolism tragically linked to a previously undisclosed battle with rectal cancer.

Why it matters

The connection between rectal cancer and pulmonary embolism is an important but not widely known medical issue. O'Hara's passing sheds light on this dangerous complication and the importance of early detection and treatment of rectal cancer to prevent such fatal outcomes.

The details

O'Hara was diagnosed with Stage II rectal cancer in late 2024 and underwent chemotherapy, radiation, and surgical treatment. Following the surgery, she appeared to be recovering well, but a recent routine check-up revealed evidence of a developing blood clot. Despite immediate anticoagulation therapy, a pulmonary embolism occurred unexpectedly, proving fatal.

  • O'Hara was diagnosed with Stage II rectal cancer in late 2024.
  • She underwent a course of chemotherapy and radiation therapy, followed by surgical resection of the tumor in early 2025.
  • Following surgery, O'Hara appeared to be recovering well and resumed some light work.
  • A recent routine check-up revealed evidence of a developing DVT in late 2025.
  • O'Hara passed away on February 9th, 2026.

The players

Catherine O'Hara

A beloved comedic actress known for her iconic roles in films like Home Alone and Beetlejuice, and more recently, Schitt's Creek.

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The takeaway

This tragic case highlights the critical importance of early detection and proactive management of rectal cancer, as well as the need for increased awareness around the potentially deadly connection between this form of cancer and pulmonary embolism. Healthcare providers and the public must remain vigilant in recognizing the warning signs and seeking prompt medical attention to prevent similar outcomes.