There is not a specific test. It is diagnosed according to symptoms. Here is some info that I pulled from this website.
Polycystic Ovary Syndrome (PCOS)
I hope it helps to answer some of your questions. PCOS effects so many areas in your life. It is about so much more than fertility. As I am learning to manage my symptoms, I am only now realizing the effect this has had on many aspects of my life. Best wishes to you. I hope this helps.
What tests are used to diagnose polycystic ovary syndrome (PCOS)?
There is no single test to diagnose PCOS. Your doctor will take a medical history, perform a physical exam, and possibly take some tests to rule out other causes of your symptoms. During the physical exam the doctor will want to measure your blood pressure,
body mass index (BMI), and waist size. He or she also will check out the areas of increased hair growth, so try to allow the natural hair growth for a few days before the visit. Your doctor might want to do a pelvic exam to see if your ovaries are enlarged or swollen by the increased number of small cysts. A vaginal ultrasound also might be used to examine the ovaries for cysts and check out the endometrium, the lining of the uterus. The uterine lining may become thicker if your periods are not regular. You also might have blood taken to check your hormone levels and to measure glucose (sugar) levels
What are the symptoms of polycystic ovary syndrome (PCOS)?
Not all women with PCOS share the same symptoms. These are some of the symptoms of PCOS:
- infrequent menstrual periods, no menstrual periods, and/or irregular bleeding
- infertility (not able to get pregnant) because of not ovulating
- increased hair growth on the face, chest, stomach, back, thumbs, or toes—a condition called hirsutism (HER-suh-tiz-um)
- ovarian cysts
- acne, oily skin, or dandruff
- weight gain or obesity, usually carrying extra weight around the waist
- insulin resistance or type 2 diabetes
- high cholesterol
- high blood pressure
- male-pattern baldness or thinning hair
- patches of thickened and dark brown or black skin on the neck, arms, breasts, or thighs
- skin tags, or tiny excess flaps of skin in the armpits or neck area
- pelvic pain
- anxiety or depression due to appearance and/or infertility
- sleep apnea—excessive snoring and times when breathing stops while asleep