Hello,
This can be due to metromenorrhagia or dysfunction
uterine bleeding and hormonal imbalance can be one
of the causes
of menorrhagia. Sometimes it is associated with polymenorrhea(Frequent flow, cycles of ≤21 days)Causes of menorrhagia are Hypothyroidism, Endometrial proliferation or hyperplasia like ovarian tumor and polycystic ovarian disease,endometrial polyps and neoplasia,endometriosis,fibroids and uterine sarcomas.