My sister is 30+ year old and married. Since young age of 16+ years she have habit of calling/testing multiple boys and lying about it. She lies alot. And whenever she get caught she can not defend herself and remains quite and says she ll not do it again but she does same thing again n again. She is doing this even after her marriage also. She is having 3 years old daughter now. I am wondering is this kind of any mental condition or she need any medical consultation?