This happens at the site of a previous surgery. This type of hernia is because of incomplete healing at the time of a previous surgery or as a result of some complication, such as infection, of the previous surgery. It has to be noted that 5–10 percent of all patients who had undergone surgery develop this. This is very rare after laparoscopic or keyhole surgery.
Both these types of hernia occur around an already existing weak spot in the abdomen, that being the umbilicus.
Umbilical hernia can be present at the time of birth, and there is no need to repair it unless it is big. Usually, most of the cases of umbilical hernia resolve by the end of one year. If present beyond 5 years, then surgery is needed.
Paraumbilical hernias are acquired hernias that develop above or below the umbilicus.
These are hernias appearing in the midline above the umbilicus up to the chest bone.
Inguinal hernias are the most common hernias. They are more common in men than in woman.
Femoral hernias appear in the groin below where the inguinal hernias appear. They are more common in elderly females.