If you have regular heartburn — two or more times a week — and haven’t notified your doctor, you’re ignoring one of the biggest cancer risk factors. Acid reflux, of which heartburn is a symptom, can actually cause cancer of the esophagus.
http://www.floridatoday.com/article/20130324/COLUMNISTS0807/303240020/Your-Health-Dr-Stephanie-Heartburn-can-lead-cancer?nclick_check=1
Heartburn can lead to cancer