Mental Health First Aid courses teach people to respond to symptoms they are able to observe and it is not about making a diagnosis. A person who meets the criteria for borderline personality disorder may present as depressed, anxious, very upset, engaging in non-suicidal self-injury, or having thoughts of suicide. The course teaches people how to respond in these situations in a caring and compassionate manner and assist the person to get help, without making any such diagnosis.
For people who would like additional information about borderline personality disorder, MHFA Australia recommends the resources on the Spectrum BPD (Victoria) website. This includes downloadable resources for consumers, carers and professionals, and links to other reliable information.