Yes, it is possible for an adult male to be diagnosed with Borderline Personality Disorder (BPD). While BPD has historically been more commonly diagnosed in women, research and clinical experience have shown that it can affect both men and women.
Borderline Personality Disorder is characterized by a pattern of unstable relationships, intense emotional experiences, a fragile sense of self, impulsivity, self-destructive behaviors, and a fear of abandonment. These symptoms can manifest in various ways, and they are not exclusive to any gender.
One reason BPD may have been historically diagnosed more frequently in women is that men with BPD may present with some different expressions of the disorder. For example, men might be more likely to exhibit outwardly aggressive behaviors or engage in substance abuse as a way to cope with their emotional struggles, whereas women may display more internalizing symptoms. Such differences in symptom presentation could contribute to underdiagnosis or misdiagnosis in men.
Moreover, mental health stigma and societal expectations around masculinity might deter men from seeking help or discussing their emotional difficulties openly, making it less likely for them to receive a proper diagnosis.
It is essential for mental health professionals to be aware of the potential gender differences in BPD presentation and to consider the disorder in their diagnostic evaluations regardless of the person's gender. Early diagnosis and appropriate treatment, often involving psychotherapy (such as Dialectical Behavior Therapy), can help individuals with BPD, regardless of gender, to manage their symptoms and lead more fulfilling lives.