Why does my email show 1 mail in spam even after I delete all messages?

My Yahoo spam mail [in the column on the left side] shows 1 mail, but there is nothing showing in the body of the mail, and delete all doesn't get rid of it. Any suggestions?

Anonymous2015-05-02T10:25:55Z

Favorite Answer

Usually refreshing the page after deleting mail fixes it. Its just the spam box didnt recognize when emptied it