Cancer risk climbs globally; early detection signs crucial

Incidence of cancer is rising worldwide, driven by longer lifespans and improved screening. In the United States the rate increased from about 400 cases per 100,000 people in 1975 to 456 in 2023, while deaths fell from 201 to 142 per 100,000 since 1999. Experts attribute the rise to demographic aging, broader diagnostic criteria and more sensitive tests. Oncologist Mikkael Sekeres noted, "Astăzi avem mai multe motive de speranță decât în trecut, pentru că boala este depistată mai devreme, tratată mai eficient sau transformată într‑o afecţiune cronică, și nu într‑una care pune viața în pericol."

Early detection is especially important for colorectal cancer. The primary warning sign is rectal bleeding, which can appear as blood in the toilet bowl after a bowel movement. Dr. John Nathanson warned, "Cancerul de colon poate fi dificil de diagnosticat, deoarece se poate dezvolta asimptomatic." Other symptoms include persistent constipation or diarrhea, narrow stools, abdominal pain, unexplained fatigue, anemia and unintentional weight loss. Screening beginning at age 45 for average‑risk adults and earlier for those with family history can raise five‑year survival for localized disease to about 90%. Lifestyle measures such as high‑fiber diets, regular exercise, limiting alcohol, quitting smoking and reducing processed red meat further lower risk.