What type of amnesia is called when someone loses there entire memory?

doesn't remember his past, who he is, his family, nothing. Almost like he was born yesterday.What type of amnesia is called when someone loses there entire memory?
So he can't remember anything prior to losing his memory? It's called retrograde amnesia.What type of amnesia is called when someone loses there entire memory?
It is called Retrograde Amnesia. I am actually a person that has this disorder. I wrote about my experience to raise awareness. It doesn't necessarily even take your "entire" memory. I have lost only 6 years and a few splotches of information from my childhood.