Dog Rocks Â® are a 100% natural, paramagnetic igneous rock mined from a quarry in Australia. They contain no chemicals and have been scientifically tested and proven safe for all pets.
In brief: Water. Free fluid is typically water. The lining of your abdominal contents are slippery (your bowel, the lining of your organs) and it's thus wet inside your abdomen. It's normal to have a little free fluid in one's pelvis, as that's where fluid tends to pool.
Free fluid in the pelvis is a term used to describe the fluid that has leaked from a ruptured cyst. A cyst is a blister-like tissue that is formed naturally by the ovary. Every woman produces a cyst before ovulation which will house the egg until ovulation occurs. After ovulation, a cyst may form to make progesterone.