First: the surgical incision is small, beautiful and hidden, and the prognosis is basically invisible. Second: it is possible to observe whether there is a hidden hernia on the opposite side at the same time, and if it is found, all the surgery is done in one operation, avoiding one operation. In other words, in the original open surgery, if you find out which side can only be done before surgery, after doing this side, if the opposite side comes out, you still have to be anesthetized once and do the opposite side once. This means that you have to do it twice, but minimally invasive surgery can solve all the problems in one operation.