I'm sure my mom has bpd but can't prove it. I grew up in an alcoholic household. The trauma of that is still with me. But then I got divorced at age 31 and moved myself and my kids into my mom and her husband's place . They used to be cruel to me. Yelling and screaming and swearing. Calling me a "bipolar b**ch". So many of my hospitalizations started because I felt at the end of sanity. I try hard not to be like my parents. I think its genetic too. I'm in a study at a major university about bipolar.. Its been going on for over 10 years. I'm not sure what they've found. But it does make me wonder if they're going to have me come in this year. They pay for the surveys and the 2 hour in person meeting around this time of year. I should call them tomorrow and find out. I think its both genetic and environment. Plus, I had an alcoholic dad and have the symptoms from that- like having to guess what behavior is normal.