This article presents the results of an audit of self-harming across three women's units over a period of 6 years. All three units use a positive risk-taking approach to self-harm whereby the risk that this behaviour presents is considered in an effort to reduce actual harm.To explore patterns and frequency of self-harm across three units within a women's service.Incidents of deliberate self-harm were collected from incident forms completed across the units from 2004 to 2009.Frequency graphs show a reduction of self-harm over the course of admission, and parametric analyses show that there was a significant difference in the frequency of self-harm during the first and last 3 months of admission.These results are discussed within a psychoanalytical framework, with particular reference to relational security and the value of positive risk-taking.