How to open the Spam folder in Gmail (Making the spam folder Visible In Gmail)

By default the Gmail spam folder is hidden.
In order to show the spam folder go to settings.
In settings page, go to the Labels tab.
There you will be listed with all the Labels like Inbox, spam, Trash etc.
Click “Show” near the Spam Label.
The spam section will automatically be Shown on the left sidebar.
In this way, you can show or hide any labels you want to.