A study has found that colon cancer deaths in the US are on the rise, with a notable increase in deaths among younger adults. The study suggests that rectal cancer mortality is rising faster than colon cancer, and that colon cancer is a leading cause of cancer death among people under 50. However, there is some uncertainty in the trend, as one report indicates that cancer deaths among Americans under 50 have nearly halved, although this decline does not appear to apply to colon cancer.