Facial reconstruction

Facial reconstruction is the process through which the player can remake their character's face.

Fallout 3
Facial reconstruction services are offered by Horace Pinkerton near Rivet City.

Fallout: New Vegas
Facial reconstruction services require Old World Blues. They are offered by the Sink Auto-Doc.

Fallout 4
Facial reconstruction services are offered by Doc Crocker at Diamond City. Just enter the door next to Doctor Sun's clinic.