Hello doc. My mom had last history of fibroids,ovarian cyst 8 years back. Currently she is in perimenopausal period. Her periods are regular. And recently this month she got periods 19days after the last menstrual period. She gives me h/o passage of small 1 or 2clots from vagina everytime she is urinating during her menses for 4 to 5 days. Last month this problem was not there. Is this serious? What investigation should be done?