Doctors may soon be able to save lives by checking stool samples for DNA evidence of cancer, researchers said on Friday. A new stool test could one day help spot colorectal cancer, one of the most common cancers in the industrialized world, which now can usually be detected only with uncomfortable invasive procedures. Scientists have long been looking for telltale signs in the stools of cancer sufferers that would allow for a less invasive test. A team of researchers, writing in the British journal The Lancet, reported that they found such signs in DNA in the stools.
