Ultrasound imaging is a non-invasive medical technique that utilizes high-frequency sound waves to generate real-time images of internal body structures. This diagnostic tool helps healthcare providers visualize soft tissues, organs, and blood vessels without requiring incisions or using radiation. While many associate ultrasounds with pregnancy, they are widely employed for various diagnostic purposes, including assessing organs like the liver, kidneys, and thyroid. A common question arises regarding the feasibility of undergoing an ultrasound scan during menstruation.
Understanding the Possibility
Undergoing an ultrasound scan while menstruating is generally feasible and safe. Menstruation typically does not prevent the procedure, and there are no known risks specifically associated with having an ultrasound during your period. The decision to proceed often depends on the ultrasound type and its diagnostic purpose.
Specific Ultrasound Types
The impact of menstruation on an ultrasound can vary depending on the specific type of scan being performed. For ultrasounds of non-pelvic body parts, such as the abdomen, kidneys, or thyroid, menstruation generally has no effect on the procedure or image quality. These scans focus on areas unrelated to the reproductive system, so menstrual fluid does not interfere.
Pelvic ultrasounds, which examine the uterus, ovaries, and surrounding structures, can be performed transabdominally or transvaginally. A transabdominal scan places the transducer on the lower abdomen, often requiring a full bladder. While feasible during menstruation, menstrual fluid might slightly alter views but usually doesn’t prevent the scan.
A transvaginal ultrasound involves inserting a thin transducer into the vagina for more detailed images. This scan is also possible during menstruation, though the presence of blood can sometimes obscure optimal views for specific diagnostic needs. Informing the sonographer if you are menstruating is helpful.
Preparing for Your Scan
If you have an ultrasound scheduled and are menstruating, it is generally not necessary to cancel. Inform the clinic or sonographer upon arrival. For transvaginal ultrasounds, remove any tampons or menstrual cups before the procedure.
Wearing comfortable, two-piece clothing can facilitate the examination. Discuss any discomfort you might experience with the sonographer during the procedure. Unless a medical professional advises rescheduling for a specific diagnostic reason, the scan can typically proceed.
Interpreting Pelvic Scan Results
Medical professionals account for menstruation when interpreting pelvic ultrasound images. The uterine lining, or endometrium, undergoes cyclical changes. During menstruation, the endometrium is thinnest, typically 2-4 mm, as the lining sheds. Minimal fluid, including menstrual blood, can be observed within the uterine cavity.
The uterine lining’s appearance changes significantly across the cycle. While menstrual blood might temporarily obscure uterine or ovarian structures for specific conditions, radiologists are trained to interpret these variations within the menstrual cycle’s context. For conditions like persistent bleeding or a suspected pelvic mass, an ultrasound can be performed at any time, even with bleeding.