The Difference Between Careful and Compulsive Checking

Checking is, in itself, a useful and functional behaviour. Checking that the door is locked before leaving is sensible. Looking both ways before crossing the road is checking. Proofreading an important document before sending is a form of checking. The capacity to verify, to confirm, to make sure – this is not a problem. It is part of what makes people reliable and safe.

The line between careful and compulsive checking is not found in whether checking occurs, or how many times. Some tasks genuinely warrant multiple checks – a surgeon verifying instrument counts, a pilot running through a checklist before takeoff. The number is not the marker. The marker is something else: whether checking produces the felt sense of completion that allows the person to move on.

In careful checking, checking produces resolution. The pilot checks the controls; the controls are confirmed; the pilot proceeds. There is a felt endpoint. In compulsive checking, checking does not produce resolution – or it produces resolution so briefly that it has effectively not occurred. The person checks the door; it is locked; and within moments, the question is open again. No amount of additional checking closes it reliably. The behaviour is the same. The resolution is absent.

A second marker: does checking take time away from life in a way that causes distress or impairment? One check of the door takes two seconds and is forgotten. Five returns to the door before being able to leave, followed by a call to a neighbour after departing, is qualitatively different. The time, the impairment of ordinary functioning, the distress when checking is resisted – these are the markers of a pattern that warrants attention.