UnknownThere is not one specific or standard test available to determine if a patient is dealing with PCOS. The first step to diagnosing PCOS is for a doctor to inquire about the patient's medical history of symptoms, such as irregular or missed periods, weight and hair changes, and acne. A doctor may also check into a patient’s family medical history to indicate if the symptoms are related to PCOS rather than another disease, as well as check the patient’s weight, vitals, and do a complete physical exam. Lab tests can be conducted to check blood sugar and androgen levels, as well as a sonogram, to evaluate the ovaries. The best way to diagnose a woman with PCOS is through an ultrasound, as cysts on the ovaries are often indicators that a patient may be suffering from this condition, and can only be viewed through an ultrasound. These types of tests can help diagnose a woman with PCOS. However, a doctor can refer the patient to a specialist for hormones, or an endocrinologist, to determine one-hundred percent if the patient has PCOS and is not being misdiagnosed with a different hormone-related condition.