People with gastroesophageal reflux disease may experience a symptom called water brash. Water brash occurs when a person produces an excessive amount of saliva that mixes with stomach acids that have risen to the throat.
A person experiencing water brash can get a bad taste in their mouth and feel heartburn. Doctors sometimes refer to water brash as pyrosis idiopathica, acid brash, or hypersalivation.
Water brash is different than regurgitation — in which a mixture of stomach acids and, sometimes, undigested food comes up into the oesophagus (food pipe) — due to the excessive salivation that it involves.
Keep reading to learn more about water brash, including the associated symptoms, possible causes, and treatment options.