When TikToker Radwah Oda revealed her colon cancer diagnosis, her goal wasn’t just to share her journey—it was to warn others not to ignore potential symptoms.

Her message resonated with thousands, highlighting how easy it is to overlook warning signs that could indicate a serious health issue.

“If you experience any of these symptoms, don’t panic, but see a doctor. Advocate for yourself,” she urged in her viral post.

Though colon cancer is often linked to older adults, it can develop at any age. One of its dangers is that it progresses silently, with symptoms often appearing only when the disease has advanced. Below are five key warning signs that experts, including Radwah, believe should never be ignored.

1. Changes in Stool Shape

Many people don’t pay close attention to their stool, but its shape can provide crucial health clues. If stools become consistently thin or pencil-like, it may indicate a blockage in the colon, often caused by a tumor. While occasional changes can be harmless, persistent narrowing over weeks should be discussed with a doctor.