Your doctor may check your blood pressure, BMI (body mass index), and waist size. She may also look at your skin to check for extra hair growth, acne, and discolored skin, which can all happen if you have PCOS.
Pelvic exam: This is just like what happens when you get a regular checkup. Your doctor will look at and feel areas of your body including the vagina, cervix, uterus, fallopian tubes, ovaries, and rectum, checking for anything unusual.
Pelvic ultrasound (sonogram): This produces an image of what your ovaries look like. For the ultrasound, you lie down and the doctor briefly places an ultrasound device in your vagina. The doctor will check for cysts in your ovaries and how thick the lining is in your uterus. That lining may be thicker than normal if your periods aren’t happening when they’re supposed to.
Your ovaries may be 1½ to 3 times larger than normal when you have PCOS. The ultrasound can show ovary changes in about 90% of women who have PCOS.