Ovarian cysts are fluid-filled sacs that can develop on or within the ovaries, which are the reproductive organs in women. They are quite common and often form during the menstrual cycle. Most cysts are harmless and may go away on their own without causing any symptoms. However, some can lead to discomfort or complications if they grow large or rupture. While many women experience ovarian cysts at some point, they usually do not indicate a serious health issue. Regular check-ups with a healthcare provider can help monitor any cysts and ensure they do not cause problems. If symptoms like pain or irregular periods occur, it's important to seek medical advice.