The frequency of Border line personality disorder (BPD) is three times greater in women than men. The disorder is characterized by a pattern of continuous instability in moods, behavior, self-image. It often affects the functioning of the patient. It occurs within the context of relationships and friendship but all in all, females have shown a staggering 3:1 ratio of acquiring the disorder. They has been a lot of hypothesis why females are more vulnerable. Some psychiatrists attribute this trend to genetic or hormonal reason while others blame BPD on early-onset incest, other sexual abuse, or Post Traumatic Stress Disorder (PTSD).