Ovarian cysts are a common condition among women, especially during their childbearing years. They occur on the outside of a woman’s ovaries and develop in the form of sacs that are filled with fluid. Ovarian cysts may not pose any problems or discomfort, but sometimes, they can be quite painful. Follicular cysts are the most common type of ovarian cysts. They often go away on their own but some may require treatment. Women have two ovaries that are located on each side of the uterus. Their role is to act as a host to the eggs that develop and mature when a woman is trying to have a baby.