Nausea and dry heaving can be caused by pharyngitis, gastroesophageal reflux disease (GERD), chronic gastritis and other diseases.
1. Pharyngitis: pharyngitis will produce a lot of phlegm, this phlegm and inflammation will stimulate the throat to occur pharyngeal reflex, resulting in increased peristaltic contraction of the stomach, always nausea and dry heaving.
2. Gastroesophageal reflux disease (GERD): the relaxation of esophageal sphincter leads to the easy reflux of stomach contents into the esophagus, and at the same time, it will stimulate the cardia, resulting in nausea and dry heaving.
3. Chronic gastritis: long-term inflammation stimulates the gastric mucosa, abnormal contraction and peristalsis occur in the stomach, which triggers nausea and dry heaving all the time.
Nausea and dry heaving may also be caused by other reasons, it is recommended to go to the hospital in a timely manner, under the guidance of the doctor for examination, to determine the cause of the disease and then targeted treatment or treatment.