Hello,
This intermenstrual cyclic spotting can be due to ovulation or hormonal changes. If the
spotting changes to frank
bleeding, then intermenstrual bleeding has to be ruled out. It can be due to genital infections or cervical polyps (benign growths on the cervix). Other causes may be may be uterine fibroids, miscarriage after a pregnancy, ectopic pregnancy, fluctuation in hormone levels and hypothyroidism. Please get yourself evaluated by a gynecologist.