Acid reflux can feel like your heart or chest is burning. If you've ever experienced acid reflux, you may have wondered if it was abnormal or dangerous.

Narrowing of the esophagus that can lead to swallowing issues The formation of open sores (or ulcers) in the esophagus which can bleed and cause difficulty swallowing Precancerous changes in the ...

So you're feeling that uncomfortable burning sensation in your chest. Your mouth tastes bitter or sour. The back of your throat is burning. While the occasional heartburn episode usually isn't an ...

Bile acid is a liquid substance your liver produces to aid in food digestion. Your body usually releases bile at the correct levels based on the food you eat. But sometimes your body produces too much ...

This bile duct stent with the "Dua Anti-Reflux Valve," named after its inventor, was cleared for use by FDA this year. The Dua stent, for short, has also been approved for use in Europe and Canada.

Sara Moniuszko is a health and lifestyle reporter at CBSNews.com. Previously, she wrote for USA Today, where she was selected to help launch the newspaper's wellness vertical. She now covers breaking ...