This is because hernias can lose their blood supply (become a strangulated hernia) over time and become acutely dangerous. This causes ischemia and can cause permanent, if not fatal, damage. So it’s best to have your hernia checked out as early as possible.
Hernias can become irreducible, which means that it is hard to push them back into your chest cavity. This is the stage before the hernia becomes strangulated, and it is here that seeing your doctor becomes very important.
You can tell whether a hernia is getting dangerous when you cannot push it back into your body, when you have difficulty passing wind or you have difficulty passing bowel movements, when you feel continuously nauseous, or when there is a sudden bout of intense pain around the affected area.
If any of these occur, you should go to Accident and Emergency.
These conditions are associated with a strangulated hernia.
Strangulation can lead to vomiting and can cause your bowel activity to stop. This means you cannot pass wind and your bowels do not function. The NHS advises if this happens, you must find immediate medical attention either through your GP or by visiting an Accident & Emergency (A&E) department at your local hospital.