<prompt> Halba disease is ___Irregular shedding due to persistent corpus leuteumMenstruation is irregularIrregular ripeningDue to adenomatous polyp  <response>: Halbans disease is irregular shedding due to persistent corpus luteum. It is rare and usually self-limiting Menstruation occurs on time and is prolonged but not heavy.. Ref: Shaw;s textbook of Gynaecology 17th edition pgno: 139 