A larger percentage of younger people are being diagnosed with colorectal cancer, according to a new report released Wednesday, and researchers say they don’t know why.
The American Cancer Society said Wednesday that about 1 in 5 new colon and rectal cancers are among those in their mid-50s and younger. The proportion of these types of cancers among adults younger than 55 increased from 11 percent in 1995 to 20 percent in 2019, it found.
