One approach to monitoring Barrett’s esophagus is periodic endoscopies, or the surveillance approach looking at your esophagus (a muscular tube that connects the throat to the stomach and is made of different layers) with a flexible tube that contains a tiny camera. Your doctor may use endoscopies to watch for signs of cancer development. There are no set guidelines for how often these should be performed, so speak with your doctor about what level of surveillance is best for you. Talk to your doctor or a gastroenterologist about what screening is right for you.