图示子宫内膜增生，常由于雌激素过多引起，导致子宫不规则出血（周期不规则），月经过多（周期规则，经量过多），子宫不规则过多出血（周期不规则，血量过多）。
The endometrial cavity is opened to reveal lush fronds of hyperplastic endometrium. Endometrial hyperplasia usually results with conditions of prolonged estrogen excess and can lead to metrorrhagia (uterine bleeding at irregular intervals), menorrhagia (excessive bleeding with menstrual periods), or menometrorrhagia.