The study on borderline personality disorder (BPD) and self-directed violence in a sample of suicidal army soldiers has several limitations. First, the cross-sectional data does not support causal inference. Second, the results are not generalizable to nonsuicidal military members or suicidal individuals who did not seek treatment. Third, the accuracy of BPD diagnoses is uncertain because the study assessor was not a licensed clinician. Fourth, secondary analyses were unable to detect the number of suicide attempts. Finally, the study did not employ probabilistic sampling, and thus cannot provide an estimate of the prevalence of BPD among soldiers in general or suicidal soldiers in particular.