How can you tell if you have a cyst on an ovary?

Sonogram: A sonogram is the best tool to find and diagnose an ovarian cyst. We can sometimes feel them on exam but an ultrasound is the best way to confirm.

Ultrasound: Ob/Gyn doctors can perform a non-invasive test called an ultrasound which uses high frequency sound waves to get a picture of what is going on inside the body, including detecting cysts.