Article: You can open the YouTube app on a mobile device or open https://www.youtube.com/ in a browser. If you aren't logged in, tap ⋮ (or click Sign in for desktop) and enter your email address and password to continue. You can search for the video by entering its name in the YouTube search bar, which is accessible by tapping the magnifying glass icon on mobile. It's in the lower-right corner of the comment you wish to remove. A pop-up menu will appear. Doing so will open a pop-up window with the following options:  Unwanted commercial content or spam Pornography or sexually explicit material Hate speech or graphic speech  Harassment or bullying - If you select this option, you must select a type of harassment (toward you or toward another user) before continuing. Make sure the option you select accurately portrays the comment since you don't want to falsely flag the comment. It's in the bottom-right corner of the pop-up window. Doing so will report the comment and hide it from your view.

What is a summary?
Open YouTube. Go to the comment you want to report. Select ⋮. Select Report (mobile) or Report spam or abuse (desktop). Select an option. Select Report.