Gastroesophageal reflux is best known as a cause of heartburn. However, if severe and untreated, the condition can raise the risk of esophagus cancer.

• 胃食道返流是一个最常见的引起烧心痛的原因之一。但是，如果严重并不治疗的情况存在，食道癌发生的机会就会增高。