<unk>  can be caused by ovarian tumors, genetic conditions such as aromatase excess syndrome (also known as familial<unk> , or overconsumption of exogenous sources of estrogen, including medications used in hormone replacement therapy and hormonal contraception. Liver cirrhosis is another cause, though through lowered metabolism of estrogen, not oversecretion or overconsumption like the aforementioned. It's necessary to know there exist two kinds of<unk> : Absolute (more concentration than usual of estrogen) and relative (a normal concentration of estrogen, higher with respect to progesterone). An example of absolute<unk>  could be: persistent follicles that later undergo atresia without ovulating; and the example of relative<unk> : luteal insufficiency.
Hyperestrogenism
Hypoestrogenism
Side effects of bicalutamide
Hyperandrogenism
Androgen deficiency
Progestin-induced virilization
Side effects of cyproterone acetate
Antiestrogen withdrawal response