Hi.. Hernia is medically defined as abnormal protrussion of contents through a cavity in which it is normally contained.. Most often the protrussion occurs throught the abdominal wall which results in a swelling.. Other internal hernia is also known to occurs such as hiatus hernia, where there is protrussion of the stomach through the diaphram.. These hernia usually cause asymptomatic hernia and diagnosed incidentally by examination. The symptoms, if occurs depends on the contents of the hernia.. The next common symptom is pain.. Finally the rest of the symptoms such as vomiting, fever, constipation and so on will occur if there are complications.. The cost of the treatment varies in different institutes and depending on the type of hernia.. The rough estimate would be a few thousand Indian rupees..