The bomb icon on Instagram typically refers to the “Likes” feature. When you double-tap on an image or video on Instagram, or tap the heart icon beneath a post, you are giving it a “like”. The number of likes a post receives is displayed as a count next to the bomb icon.

The bomb icon has become synonymous with popularity and engagement on Instagram, and many users and influencers strive to get as many likes as possible on their posts. However, in some cases, the bomb icon has been associated with negative effects on mental health, as users can become obsessed with the number of likes they receive and may feel pressure to present a certain image or persona online.
In recent years, Instagram has made changes to the way likes are displayed on the platform, with some users seeing only their own like counts and not those of other users. This change was implemented in an effort to reduce the negative impact of likes on mental health and encourage users to focus more on creating and sharing content they enjoy, rather than seeking validation through likes.