Fertility Glossary

Ovarian cyst

A fluid-filled sac in or on an ovary.

Most ovarian cysts are harmless and resolve without treatment. Persistent, large or complex cysts are assessed further, and may delay the start of a stimulation cycle.

Related terms

Endometrioma

An ovarian cyst formed by endometriosis, sometimes called a chocolate cyst.

Pelvic ultrasound

A scan of the uterus and ovaries.

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