Our stomachs produce acid, to defend against infection, and to help digestion. The stomach itself is usually protected from this acid.
If stomach acid flows upwards into the food-pipe (oesophagus), this can cause heartburn, indigestion, or reflux symptoms. Lifestyle changes, like healthy changes to your diet or eating pattern, can be very helpful. Some patients require medication. A small number of patients may benefit from anti-reflux surgery.