I once changed my birthday in the household registration book. Should I count my original birthday or change my birthday now?

This kind of divination has existed since ancient times, which has nothing to do with the hukou book.

If divination is calculated according to the household registration book, it will be easier to modify the household registration book.

It has something to do with birth.

So there are many caesarean sections now. Find a good day and choose caesarean section. Do not modify the household registration book.