Your Tweet media settings allow you to label your media for the appropriate viewers, and select whose media will display on your Twitter homepage. Remember that your audience is potentially made up of millions of people, and that not all media is suitable for everyone.
If you upload media that might be considered sensitive content such as nudity, violence, or medical procedures, you should consider applying the account setting “Mark my media as containing sensitive content” by following the instructions below.
If another user notices that you have not marked your media appropriately, that user may flag your image or video for review. To avoid this, if you plan to often upload possibly sensitive content, check the box next to "Mark my media as containing possibly sensitive content" in your account settings page. To learn more about what happens if your image or video is reported, please review the Twitter Media Policy page.
When you mark your Tweets as containing media that might be sensitive, users will be required to click through a warning message before media is displayed to them. For users who have opted in to seeing possibly sensitive media, they will see your images without a warning.
Users can opt to view media from people they don't follow, as well as to view any sensitive media by default. These settings can be selected in your account settings Tweet media section as well.
By default, you automatically see images and videos only from people you follow. Additionally, you can choose to view media from people you don’t follow, and to view media that may contain sensitive content without a warning. If you are concerned about viewing sensitive content, you should keep your default settings. Your default settings will help by providing warnings before seeing content that has been marked as possibly sensitive, and content from users you do not follow.
If you feel an image or video should be brought to the attention of the Twitter team for review, please report the media. You can do this by clicking on the "flag this media" link beneath the image.
Please see these articles for more information on the Twitter Media Policy, and Flagging Media Violations.