YouTube watch history makes it easy to find videos you recently watched and improves your video recommendations. You can control your watch history by clearing or pausing your history. Any videos that you watch while history is paused won't show in your history. They also won’t be used to improve your recommendations.
View, clear, or pause watch history (signed in)
Sign in and go to myactivity.google.com to find videos that you've viewed on the YouTube app or website while signed in. It also includes videos you've watched in a YouTube player on other websites while signed in to Google Chrome.
Changes you make to your account watch history will be reflected on all devices you sign in to with this account.
View your watch history
Go to the Library tab 
.
- Remove a video: Next to the video details in the History page, tap More
and tap Remove from Watch History.
Clear or pause your watch history
At the top of your History page, tap More 
- Select Clear watch history or turn on Pause watch history.
Mobile web
View your watch history
Go to the Library tab
- Remove a video: Tap More
Clear or pause your watch history
Tap your profile picture 
- Clear watch history: Tap CLEAR WATCH HISTORY.
- Pause watch history: Tap PAUSE WATCH HISTORY.
View or clear your search history
To view or delete what you've previously searched for on YouTube, check out your search history.
If you use YouTube Music
Learn more about how to manage your watch history for YouTube Music here.