Over 90% of common surgical operations in infants and children that are traditionally performed via an open approach can now be performed very safely and effectively by minimally invasive surgery approach. These range from the most simple surgery like herniotomy for inguinal hernia and appendectomy for acute appendicitis to complicated procedures including laparoscopic primary pullthrough for Hirschspring's disease, excision of choledochal cyst with hepaticoenterostomy, to various types of complex bladder surgery. Children could benefit more from these minimally invasive therapy with much less pain & discomfort, as well as shorter hospital stay that alleviates separation anxiety, and quicker return to normal school activities. The surgeries include: