Occasionally this does happen after surgery for perforated appendix. Incisional hernias develop because the muscle has not come together during healing. If the hernia neck is small, then perhaps a semi-urgent operation is needed, otherwise intestine can get trapped in it and turn a simple hernia operation into a major surgical exercise. Further if done when there is infection one can not use a mesh for repair which is essential to stop the hernia from recurring. However if the hernia neck is wide, it is mainly a cosmetic defect and an unsightly bulge. It should be generally repaired as it does cause a general discomfort. There are lots of good hospitals in Mumbai, Nasik and Bangalore and any one of them can repair this successfully.