Here is a detailed, point-by-point look at what does (and does not) happen when you block someone on Facebook. Once you block a person, the following restrictions take effect instantly:
The block is mutual in this sense. You will also be unable to visit their profile, see their posts, or search for them. if i block someone on facebook what happens
The blocked person cannot tag you in posts, photos, or comments, nor can they use your name with the "@" symbol to mention you. Here is a detailed, point-by-point look at what
Use blocking when you need a clean, immediate break. For less severe situations, start with Restrict or Snooze. And remember: for real-world harassment or threats, always report the behavior to Facebook and consider contacting local authorities. The blocked person cannot tag you in posts,
Your Messenger chat history with that person will disappear from your inbox. However, the conversation is not deleted from Facebook’s servers. If you unblock the person later, the chat history may reappear (depending on whether either of you has deleted it).
If you were friends with the person, blocking them immediately unfriends them. They cannot request to be friends with you again while blocked.