Are dominant follicles dangerous? What do they mean?

A dominant follicle is a normal occurrence which happens every month during your cycle and is nothing to worry about. Basically follicles are where you keep your eggs in your ovaries and each month in the first half of your cycle one grows big and pops, releasing your egg about mid cycle. All this means that at the time of the ultrasound you were about mid cycle, but hadn't ovulated yet.