Many women struggle with ovarian cysts. Here are certain factors that can cause ovarian cysts: Hormonal imbalances: Functional cysts can be caused by hormonal imbalances. Polycystic ovary syndrome (PCOS): PCOS is a condition where several small cysts form on the ovaries. Family history: Dermoid cysts could be a genetic occurrence from a parent who has had them in the past. Pregnancy: Some cysts form during early pregnancy, and they are usually harmless. Personal medical history: A history of ovarian cysts can also increase the chance of developing cysts. Birth control pills can stop monthly ovulation, which can further prevent functional cysts. However, this won’t prevent non-functional cysts, like dermoid cysts. For further procedures, you need to speak to a Glenroy GP, or they can also recommend further consultation with ovarian cyst specialists.