DUB: dysfunctional uterine bleeding

anovulation --> increased estrogen --> prolonged proliferation phase --> no secretary phase --> estrogen breakthrough bleeding

Dx: Hx + clear, thin and watery mucus + no midcycle temp rise + biopsy of proliferation phase

Txt:
1. cyclic progestin using OCPs, from day 14 to 25
2. correct anovulation: hypothyroidism, hyperprolactinemia, test TSH and prolactin level
3. endometrial ablation or hysterectomy