The most common causes of a black spot on your ovary could be a normal ovarian follicle, an old scar from a
ruptured follicle, an ovarian cyst (multiple cysts could suggest PCOD) or endometriosis (spots look like blue
or black powder burns). Ovarian tumours can also cause enlargement. A clear diagnosis would be possible only
by correlating your symptoms (if any) and the biopsy findings. I hope this helps. Glad your surgery went well
and Good Luck.