Hashtags on Instagram, denoted by the “#” symbol, categorize content and make posts discoverable by users interested in specific topics or ideas. When you add a hashtag to your post, it becomes searchable and visible to anyone browsing that hashtag. By strategically using relevant hashtags, you can increase your post’s visibility and reach a wider audience beyond your existing followers. Clicking on a hashtag leads to a page revealing all the posts using the same hashtag.