Most hernias should be repaired as there are risks associated with them. This is especially important if you have a hernia that causes pain, severe or persistent symptoms, or if any serious complications develop. Complications that can develop as a result of a hernia include:
Obstruction – where a section of the bowel becomes stuck in the hernia, causing nausea, vomiting and stomach pain, as well as a painful lump.
Strangulation – where a section of bowel becomes trapped and its blood supply is cut off; this requires emergency surgery within hours to release the trapped tissue and restore its blood supply, so it doesn't die.
Surgery gets rid of the hernia to prevent any serious complications, but there's a very small chance it could return after the operation.