Pyrosis or heartburn is a burning sensation in the chest just behind the breastbone or in the epigastrium. The pain often rises in the chest and may radiate to the neck, throat, or jaw.

Heartburn is usually associated with regurgitation of gastric acid (gastric reflux) which is the main symptom of gastroesophageal reflux disease (GERD).


Symptoms can vary in severity among individuals. The principal is abdominal pain, which may radiate to the neck, throat, or jaw. Read more about pyrosis symptoms.


Heartburn occurs when stomach acid backs up into the esophagus. Read more about the causes of pyrosis.

Risk factors

Pregnancy, certain foods, alcohol and some medications can cause heartburn. Read more about the risk factors of pyrosis.


Heartburn that occurs frequently and interferes with your routine is considered gastroesophageal reflux disease (GERD). Read more about the complications of pyrosis.


To determine if heartburn is a symptom of GERD, your doctor may suggest one or more tests and procedures. Read more about the diagnosis of pyrosis.


The acid treatment is important because the time of reflux may damage the esophagus. If heartburn persists, you may need prescription medicines or surgery. Read more about the treatment of pyrosis.