Introduction: Understanding Ovarian Cysts An ovarian cyst  is a fluid-filled sac that develops in or on an ovary. Most women experience at least one cyst during their reproductive years, often without even realizing it. While many cysts are harmless and resolve naturally, others may grow large or cause discomfort — sometimes requiring medical intervention. Understanding the size, type, and symptoms of an ovarian cyst is essential for early treatment and to protect fertility.

Ovarian cysts are more common than most people realize, and while some can affect fertility, many don’t. Understanding the type of cyst and what it means for your body is the first step. If you are concerned about your fertility, talk to your doctor.

Ovarian cysts are more common than you might think, and for many women, they come and go without causing any trouble.