A follicular cyst begins when the surge of luteinizing hormone (LH) in a normal ovarian cycle stimulates the egg to be released, fails to occur. The follicle therefore doesn't rupture or release its egg, but instead turns into a cyst. As follicular cysts are a natural occurring, it does not cause pain and normally disappear by itself.When the LH surge occurs and the egg is released, the remaining ruptured follicle usually starts to secrete large volumes of estrogen and progesterone. As a result, this follicle becomes the 'white body' known as corpus luteum. Sometimes the opening left in the follicle by the egg becomes sealed off. Then fluid accumulates inside the 'white body,' resulting in a cyst. Although this type of cyst deteriorates by itself, it has the potential to grow, bleed in its...