Ovarian cystsare sacs in the ovaries filled with fluid or tissue.
They are common, with 20% of women developing at least one in their lifetime.
Cyststhat form as part of themenstrual cycleduring ovulation are functional or simple cysts.

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Simple cysts are usually asymptomatic (without symptoms) and resolve on their own.
They are common in premenopausal women of reproductive age due to hormonal changes.
In rare cases, they may grow large enough to cause complications.
Cysts are less common aftermenopause, and postmenopausal women with ovarian cysts have a higher risk ofovarian cancer.
In postmenopausal women, complex ovarian cysts may increase the risk of ovarian cancer.
It is common and usually harmless for cysts to develop during pregnancy.
If your healthcare provider finds a cyst during pregnancy, they will closely monitor the condition.
A cyst that continues to grow can rupture, twist, or cause issues during childbirth.
However, ovarian cysts typically do not affect the ability to get pregnant in the future.
A healthcare provider will conduct a physical andpelvic exam.
Other signs may include irregular vaginal bleeding.
Immediate medical attention can reduce the risk of permanent tissue damage or the loss of the ovaries.
Summary
Ovarian cysts are common and usually harmless.
Complex ovarian cysts have various causes unrelated to the menstrual cycle.
Often, symptoms may be mild, or an individual may be asymptomatic (without symptoms).
Generally, cysts can resolve on their own.
It is rare for cysts to develop into ovarian cancer, but the risk increases in postmenopausal women.
In most cases, ovarian cysts are harmless and manageable and will not impact fertility or pregnancy.
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