It occurs through a scar of any previous surgical incision made in the abdomen and usually develops after many years of surgery. Incisional hernias are small and only the peritoneum or tissue layer lining the abdominal cavity protrudes out. Incisional hernias are more common in obese individuals and in pregnant women. Risk is more in those who had multiple surgeries earlier and those who perform activities that impart more stress of abdomen.
Patients may experience pain and discomfort and there is always a risk of recurrence.