Abdominal Ultrasound Results in Polycystic Ovary Cases - Obstetrics and Gynecology

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Abdominal ultrasound


Height 162 cm, weight 54 kg, BMI = 20.6, waist circumference reaching 83 cm, with only irregular menstrual cycles and prolonged periods.
After visiting a gynecologist and undergoing blood tests, I was diagnosed with polycystic ovaries (not polycystic ovary syndrome).
However, the first abdominal ultrasound showed no abnormalities, and the second ultrasound revealed a cyst on the ovary that would resolve after menstruation.

My question is: Since both abdominal ultrasounds did not show the typical images associated with polycystic ovaries, could a waist circumference of 83 cm affect the clarity of the ultrasound?

442, 20~29 year old female. Ask Date: 2015/12/16

Dr. Lin Wenbin reply Obstetrics and Gynecology


The diagnosis of polycystic ovary syndrome (PCOS) is not based solely on ultrasound.

Reply Date: 2015/12/16

More Info


When it comes to diagnosing polycystic ovary syndrome (PCOS) and understanding abdominal ultrasound results, it is essential to recognize that the diagnosis is not solely reliant on imaging studies. PCOS is a complex endocrine disorder characterized by a combination of symptoms, including irregular menstrual cycles, hyperandrogenism (excess male hormones), and polycystic ovaries. The diagnosis often involves a combination of clinical evaluation, laboratory tests, and imaging studies.

In your case, you mentioned that you have irregular menstrual cycles and a waist circumference of 83 cm, which may indicate some degree of metabolic concern, but it does not directly affect the clarity of an abdominal ultrasound. The waist circumference itself is not a determining factor for the quality of ultrasound imaging. Instead, factors such as the skill of the technician, the quality of the ultrasound equipment, and the specific characteristics of the ovaries being examined play a more significant role in the visibility of polycystic ovaries.

Polycystic ovaries on ultrasound typically present as enlarged ovaries with multiple small cysts (follicles) around the periphery. However, it is important to note that not all women with PCOS will have visible cysts on ultrasound. In fact, some women may have normal-appearing ovaries despite having the syndrome. This variability can be attributed to the different phenotypes of PCOS, where some women may present with more pronounced symptoms than others.

Regarding your ultrasounds, if the first ultrasound did not show any abnormalities and the second one indicated the presence of a cyst that is expected to resolve after menstruation, it suggests that the findings may not be consistent with classic polycystic ovaries. The presence of a cyst that resolves could indicate a functional cyst rather than a sign of PCOS. Functional cysts are common and can occur in women with regular or irregular cycles.

It is also worth mentioning that the diagnosis of PCOS can be made even in the absence of ultrasound findings if other clinical criteria are met. For instance, if you have irregular menstrual cycles and signs of hyperandrogenism (like acne or excessive hair growth), these can be sufficient for a diagnosis.

If you have concerns about your diagnosis or the findings from your ultrasounds, it may be beneficial to seek a second opinion from a gynecologist or an endocrinologist who specializes in reproductive health. They can provide further evaluation and possibly recommend additional tests, such as hormone level assessments, to clarify your condition.

In summary, while abdominal ultrasound is a valuable tool in assessing ovarian health, it is not the sole determinant in diagnosing PCOS. Your symptoms, clinical history, and laboratory results are equally important. If you continue to experience irregular cycles or other symptoms, maintaining open communication with your healthcare provider is crucial for managing your health effectively.

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