Minimal data exist on treatment utilization by gender in borderline personality disorder (BPD). This study used an online questionnaire to investigate initial and lifetime patterns of utilization of multiple treatment modalities by patients with BPD, and parental satisfaction with treatment. Respondents were parents of probands diagnosed with BPD who completed a 100-question anonymous Internet survey. Of the 495 surveys that were analyzed, 409 pertained to female subjects with BPD and 86 to male subjects with BPD. Results for probands with BPD across gender were notable for similar high lifetime levels of use of care, including hospitalization, day programs, and halfway houses, but not similar levels of use of drug/alcohol rehabilitation services, which was greater among the male subjects with BPD. The male subjects with BPD received significantly less lifetime psychotherapy and pharmacotherapy than the female subjects with BPD, although the duration of medication and psychotherapy treatment did not differ by gender. These results highlight the need for more research to better understand what might account for these gender differences in treatment and improve strategies to provide appropriate care for male patients with BPD.