An ultrasound can reveal several signs that may indicate Polycystic Ovarian Syndrome (PCOS). Here are some of the most common findings:
Signs of PCOS on Ultrasound:
- Multiple Follicles: The most characteristic sign of PCOS is the presence of multiple small follicles (fluid-filled sacs) on the ovaries. These follicles are usually 2-9 mm in diameter and appear as small, round, dark spots on the ultrasound image.
- Increased Ovarian Volume: Women with PCOS often have larger ovaries than women without the condition. The size of the ovaries is measured in cubic centimeters (cc). A normal ovarian volume is typically under 10 cc, while women with PCOS may have volumes exceeding 10 cc.
- Thickened Ovarian Capsule: The outer layer of the ovary, called the ovarian capsule, may appear thickened in women with PCOS. This can be seen as a bright, white line around the ovary on the ultrasound image.
- Absence of Dominant Follicle: In a typical menstrual cycle, one follicle grows larger than the others and becomes the dominant follicle. This dominant follicle is usually visible on ultrasound. However, in women with PCOS, the absence of a dominant follicle is common.
Important Note:
It's important to remember that these ultrasound findings are not definitive for PCOS. Other conditions can also cause similar findings. A diagnosis of PCOS typically requires a combination of clinical symptoms, ultrasound findings, and hormonal testing.
