Can someone read your message after you block them on WhatsApp

No, someone who has been blocked on WhatsApp cannot read your messages, nor can they see your profile picture, status updates, or last seen status.

When you block someone on WhatsApp, all communication between you and the blocked contact is stopped, and they will no longer be able to send you messages, make calls, or see any information about you within the app.

The blocked contact will not receive any notification that they have been blocked, but they may notice that they are no longer able to send you messages or see your information.