The exact cause of hiatal hernias is not known, according to Healthline. Muscle tissue may be weak due to prior injury or other damage, allowing the stomach to push through the diaphragm.Continue Reading
Some people are born with a larger hiatus opening, states WebMD. The larger opening makes it easier for the stomach to move through the hiatus, according to Healthline.
Another cause for hiatal hernias is persistent, intense pressure on the muscles, states Mayo Clinic. Coughing, vomiting, straining during a bowel movement or lifting heavy weights can strain the muscles.
Pregnancy, obesity and age are also factors in having a hiatal hernia, according to WebMD. People who are over 50 have a higher tendency for getting a hernia.Learn more about Pain & Symptoms