What should you know about a transvaginal ultrasound probe?

The probe uses sound waves rather than X-rays. A clinician covers it with a protective sheath and applies gel before placing it a short distance into the vagina. Its position can give clearer views than an abdominal scan, especially of the lining of the womb and the ovaries.

You may feel pressure, fullness, or brief discomfort when the probe is moved. Tell the clinician if you are in pain; they can pause, change the angle, or stop. The scan may help investigate bleeding, pelvic pain, fertility concerns, ovarian cysts, or an early pregnancy. It does not by itself confirm the cause of an abnormal finding.

Follow the appointment instructions about your bladder, clothing, and medicines. You can ask for an explanation before each step, request a chaperone, and discuss alternatives if an internal scan is not suitable for you. During the examination, you usually lie on your back with your knees bent. You can say stop at any point.

Afterward, most people return to normal activities. A small amount of gel or light spotting can occur, particularly if the cervix is sensitive. Results may be discussed immediately or sent to the clinician who requested the scan. For details about the overall test, see Transvaginal Ultrasound; diagnostic hysteroscopy is a different procedure that uses a camera.

Contact a healthcare professional promptly if you develop heavy bleeding, worsening pelvic pain, fever, faintness, or unusual-smelling discharge after the examination. If you are pregnant and have severe one-sided pain, shoulder-tip pain, dizziness, or bleeding, seek urgent assessment because these symptoms can occur with an ectopic pregnancy.

Ask what the scan is checking, whether you need a full or empty bladder, when results will be available, and what an unclear or unexpected finding would mean. You can also ask whether another type of imaging is appropriate.