Before any operation can begin, the surgeon goes through a sequence of actions that is more than hygiene. Washing, scrubbing, putting on the sterile gown and gloves – a preparation in which a familiar body takes on another form.
Threshold shows the process, not the operation. The series ends before the first incision begins.
What it circles is a transition in Arnold van Gennep's sense – the separation from the everyday self and the entry into a sterile, functional form. The photographs observe this transition without interpreting it.