This Markham doctor kept seeing younger patients coming in with cancer. Then he got tested himself

Canada June 21, 2026 06:04 PM

Dr. Shiva Sharma is a Markham-based family physician. After seeing many patients his age get diagnosed with cancer, he decided to get his own symptoms checked out. That’s how he learned he had colorectal cancer.

Kevin Jiang is a Toronto-based science and health reporter for the Star. Reach him at: kjiang@thestar.ca

Megan Ogilvie is a Toronto-based health reporter for the Star. Follow her on Twitter: @megan_ogilvie or reach her via email: mogilvie@thestar.ca.

This Markham doctor kept seeing younger patients coming in with cancer. Then he got tested himself

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