anovulatory cycle造句

In anovulatory cycles using progestogen-only contraceptives, the endometrium is thin and atrophic.
Polycystic ovary syndrome ( also known as Stein-Leventhal syndrome ) and hyperprolactinemia can also cause anovulatory cycles through hormonal imbalances.
For example, anovulatory cycles can occur as a result of adopting a restricted diet, as well as engaging in a high amount of exercise.
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