By default, Confluence will assign you as a watcher of any page or blog post that you create or edit. This behavior is called 'autowatch'. Confluence will send you a notification email whenever anyone updates your watched content.
You'll receive email notifications for:
Page / blog post edits (unless the author clears the 'Notify watchers' check box).
Deletions.
Attachments, including new versions or deletions of an existing attachment.
Comments, including new comments or deletions of existing comments.
The 'Watches' page in your user profile displays a list of all pages and spaces you are currently watching.
To manage your watches:
Choose your profile picture at top right of the screen, then choose Settings.
Find the Watches tab in your profile settings page.
Choose Stop Watching for any unwanted spaces or pages.
Learn more: https://confluence.atlassian.com/doc/watch-pages-spaces-and-blogs-139579.html