The bride must wear new underwear. Because this day is the most important day in her life, it is also a turning point in her life and a new beginning. On the wedding day, all the bride's clothes, including underwear, should be brand-new, which proves that she attaches importance to her new life and family and welcomes her new life with a brand-new self.

There is no such custom in our country, of course, some people don't wear it, because people will choose some more slim dress styles on the wedding day, for fear that underwear will have lines. Of course, when choosing underwear, choose seamless underwear to avoid the lines in underwear after wearing a dress. Never heard of underwear. Of course, there is generally no such custom. If there is such a custom in your hometown, let's follow it.