Women are overwhelmingly diagnosed with BPD and there's enough prejudice against the disorder that it can be difficult for them to find therapists who are willing to help. Because it's considered a "personality disorder," there's an assumption that it's something inherent to the person and cannot be improved. This is horribly stigmatizing, and being slapped with the BPD label can be a huge detriment to getting effective health care of any kind. Tragically, BPD almost always results from trauma, and trauma disorders are very treatable when the right techniques are used (and many more mainstream therapeutic modalities are not effective, and even harmful). I've seen quite a few people on /r/cptsd who were originally diagnosed with BPD, and they got nowhere and had horrible experiences with mental health professionals, until they realized on their own the link between their symptoms and their trauma history and sought the correct treatment.