A constraint exists on the number of media items that can be included in a single standard Instagram post. Users may encounter limitations on the quantity of photographs or videos they are able to upload within one posting action. This restriction is a design choice implemented by the platform.
This limitation serves several purposes, including optimization of the user experience by controlling the amount of content displayed at once and managing server load. Prior to multi-image posts, users had to create separate posts for each image, which could clutter feeds. This constraint encourages curation and careful selection of content shared in a single post.