Colon cancer cases are rising fast among younger adults in the U.S., experts warn. Once considered a disease of older people, doctors now diagnose nearly twice as many patients under 50 compared to a decade ago. “Early detection can save your life,” said Dr. Nancy You from the MD Anderson Cancer Center.

Colon cancer is now the second leading cause of cancer deaths and could soon become number one. Yet most people notice symptoms only after the disease spreads. Experts urge everyone to watch for seven warning signs — blood in stool, ongoing stomach pain, unexplained weight loss, constant fatigue, thin stool, anemia, and trouble passing gas.

“Even small changes in your digestion or energy levels matter,” said Dr. Kayla Bassett. Persistent discomfort, bloating, or unusual bowel habits should never be ignored.

Doctors recommend regular screenings starting at age 45, or earlier if you have a family history. Early testing and awareness are your best defense. Talk to your doctor — catching colon cancer early could save your life.