If you think this cannot fit inside our bodies you're pretty much wrong! Ovarian cysts are one of the things that surprise me the most. They are fluid-filled sacs or pockets within or on the surface of an ovary and are very common but rarely grow to mega sizes, generally harmless and disappear without treatment within a few months. They can cause symptoms like nausea, vomiting, bloating, painful bowel movements and pelvic pain. To make things more complex, ovarian cysts are divided into functional and pathological ones. The functional develop as part of the menstrual cycle and are usually harmless and short-lived, while pathological occur due to abnormal cell growth, and are much less common. This huge cysts seen above is a 10lbs taken from a 50-year-old female, notice how big it is with the surgeon Vincenzo Pilone (@vpilone) trying to grab it with both hands!