What causes esophageal diverticulum?

Diverticulum may be related to factors such as transseptal muscle dysfunction, esophageal motility disorders, congenital defects, reflux esophagitis, etc.

1. Transseptal muscle dysfunction The transseptal

muscle is a muscle ring that connects the esophagus to the stomach. It can inhibit reflux of stomach contents by contraction. If the transseptal muscle movement is blocked, it may lead to food retention, increase the pressure and stimulation of the esophageal wall, and then form a diverticulum.

2. Esophageal motility disorders The

normal peristaltic movement of the esophagus helps to transfer food smoothly from the throat to the stomach. If there is abnormal esophageal motility, such as esophageal spasm or abnormal motor coordination, it will cause food retention and abnormal pressure, increasing the risk of diverticulum formation.

3. Congenital defects

Some people may be born with weakness or defects in the esophageal wall, which makes the esophageal wall prone to bulging.