Progesterone for Ovarian Cysts in Reproductive-Age Women
Progesterone has not demonstrated proven efficacy for treating functional ovarian cysts in reproductive-age women. Most ovarian cysts are benign and typically resolve spontaneously with expectant management [1].
Evidence for Hormonal Therapy Versus Expectant Management
Combined oral contraceptives have not been shown to hasten resolution of functional ovarian cysts in randomized trials [2]. A randomized prospective study in patients with functional ovarian cysts after induction of ovulation compared estrogen/progesterone versus expectant management, without establishing a clear benefit for cyst resolution [3].
Evidence Directly Evaluating Progesterone (Progesterone-Only)
No high-quality evidence was identified showing that progesterone alone (progestin-only without estrogen) accelerates resolution of functional ovarian cysts in reproductive-age women [2]. A trial registry entry exists for a study comparing combined oral contraceptives with “progesterone-only pills” for functional ovarian cyst management, but outcomes were not available in the retrieved sources [4].
Clinical Implications for Practice
Expectant management is the default approach for most benign-appearing ovarian cysts because spontaneous resolution is common [1]. Hormonal agents are not routinely recommended specifically to hasten resolution of functional ovarian cysts based on available randomized evidence for contraceptive regimens [2].
Initiation and Monitoring Considerations
Follow-up is guided by cyst type and ultrasound appearance, with reassessment after a period of observation for persistent or concerning features [1]. If symptoms worsen or concerning imaging features are present, further evaluation rather than progesterone therapy should be pursued [1].
When Progesterone May Be Considered for Related Conditions
Progesterone may be used for indications other than cyst resolution, such as cycle regulation in ovulatory dysfunction, but this does not constitute evidence of benefit for ovarian cyst shrinkage [1].