Artificial cranial deformation, head flattening, or head binding is a form of permanent body alteration in which the skull of a human being is intentionally deformed. It is done by distorting the normal growth of a child's skull by applying force. Flat shapes, elongated ones (produced by binding between two pieces of wood), rounded ones (binding in cloth) and conical ones are among those chosen. It is typically carried out on an infant, as the skull is most pliable at this time. In a typical case, headbinding begins approximately a month after birth and continues for about six months.