To attend the niece's wedding, the aunt's dress should be elegant and neat, not too solemn, so as not to steal the limelight of the bride's parents. If the aunt is older than the newlyweds, she can choose to wear a suit to look mature and steady. If the aunt is much older than the bride, she can choose to wear traditional Chinese clothes, such as cheongsam or Tang suit, which looks dignified and decent.

In terms of color, we should avoid wearing too bright or fancy colors to avoid usurping the role of the host. At the same time, pay attention to the collocation of accessories, such as wearing a suit or dress with high heels or flat shoes, and appropriate jewelry.

In short, to attend the niece's wedding, menstruation should dress appropriately, dignified and elegant, to show his respect and blessing to the couple.