Some early-onset cancers are on the rise. Why?

A doctor talks to a woman with cancer.

Some early-onset cancers — those that occur in people under age 50 — are on the rise in the United States.

This overall increase is due to a rise in 14 different types of cancers in younger people, according to a new analysis. The largest increases have occurred in breast, colorectal, kidney and uterine cancer diagnoses.