Introduction

Many women experience pelvic pain and other related symptoms but often do not recognize them as signs of underlying health problems. Pelvic pain can result from several causes including menstrual cramps, ovulation, infections, or pelvic inflammatory diseases. Some symptoms, like abnormal vaginal bleeding, painful urination, or changes in vaginal discharge, are warning signs that are frequently overlooked or attributed to less serious issues. 

Research shows that a substantial number of women report moderate to severe pelvic pain, but many either do not seek medical help or are unaware that their symptoms may indicate conditions such as pelvic inflammatory disease, endometriosis, or pelvic floor dysfunction. Because untreated conditions can lead to complications like infertility, scarring, or chronic pain, it is important to pay attention to these symptoms early and consult a healthcare provider for evaluation.

What Is a Pelvic Ultrasound?

A pelvic ultrasound is a safe and simple medical test that uses high-frequency sound waves to create pictures of the organs inside the pelvis, such as the uterus, ovaries, bladder, and fallopian tubes in women. It does not use X-rays or radiation, making it safe and painless. There are different types of pelvic ultrasounds depending on the area examined:

• Transabdominal ultrasound

The technician moves a small device over the outside of the lower belly to get images.

• Transvaginal ultrasound

A small probe is gently inserted into the vagina to obtain clearer pictures of internal pelvic organs. 

This test helps doctors find the reason for symptoms like pelvic pain, bleeding, or urinary problems. It is also used during pregnancy to monitor fetal health. Pelvic ultrasound is valuable because it allows doctors to see the size, shape, and condition of pelvic organs clearly without surgery or discomfort.

Why Do Doctors Order This Test?

Doctors order a pelvic ultrasound to get a detailed look at the organs inside the pelvis. If you have symptoms like pelvic pain, unusual vaginal bleeding, problems with urination, or pain during sex, this test helps doctors find out what might be causing those symptoms. It is often used to check for conditions such as cysts, fibroids, infections, pelvic inflammatory disease, or problems related to pregnancy like ectopic pregnancy. 

The test can also show the size, shape, and position of the uterus, ovaries, and other pelvic organs. For women, it helps evaluate fertility issues and can guide treatments like in vitro fertilization. In men, a pelvic ultrasound checks the prostate and seminal vesicles, especially if there are urinary problems or signs of prostate disease. Although an ultrasound can suggest if something is unusual, it cannot definitively diagnose cancer but helps doctors decide if further tests are needed.

How Should You Prepare?

To get the clearest images during a pelvic ultrasound, doctors usually ask you to drink several glasses of water (about 32 ounces) about one hour before your appointment and avoid urinating so that your bladder is full during part of the test. Having a full bladder helps push the pelvic organs into view for better pictures. 

You should wear loose, comfortable clothing, and you may need to change into a medical gown at the clinic. There is typically no need to fast or avoid food before the test unless your doctor gives specific instructions. For transvaginal ultrasound (where the probe is inserted into the vagina), you will often be asked to empty your bladder beforehand. The test is painless, and you can resume your normal activities immediately afterward.

What Happens During the Ultrasound?

During a pelvic ultrasound, you will lie down on an exam table, usually on your back. The procedure has two main parts: the transabdominal ultrasound and, often, the transvaginal ultrasound for women.

For the transabdominal ultrasound, a warm, water-based gel is spread on your lower belly. This gel helps the small device called a transducer move smoothly and sends sound waves into your body. The technician gently presses and moves the transducer over your skin to capture images of your pelvic organs. You might feel some pressure but it should not hurt. The full bladder helps push the organs into view and makes the pictures clearer.

After this first part, you will likely be asked to empty your bladder, especially if the transvaginal scan is needed. For the transvaginal ultrasound, you lie on your back with your knees bent, similar to a pelvic exam. A smaller, covered transducer is lubricated and gently inserted a few inches into the vagina. This may feel a bit uncomfortable or cause mild pressure but is typically not painful. The technician carefully moves the probe to take detailed pictures of the uterus and ovaries from different angles.

In some cases, a transrectal ultrasound might be done for men or when needed to examine certain pelvic areas. This involves a lubricated transducer inserted gently into the rectum, with you lying on your side.

The entire exam usually lasts about 15 – 30 minutes. After the scan, the ultrasound gel is wiped off, and you can usually return to your normal activities immediately. If Doppler ultrasound is used (to check blood flow), you may hear a soft “whoosh” sound during the test. The healthcare provider reviews the images for completeness and may take extra pictures if needed.

What Will You Experience?

During a pelvic ultrasound, most people feel little to no pain. For the transabdominal ultrasound, a cool, water-based gel is applied to your lower belly to help the device glide smoothly and produce clear images. You may feel some pressure from the transducer pressing on your full bladder, which can be slightly uncomfortable but not painful. This part of the exam usually takes only a few minutes.

If a transvaginal ultrasound is done, a small, lubricated probe is gently inserted into the vagina. This may cause mild pressure or slight discomfort, but it is generally more comfortable than a manual pelvic exam. This part typically takes about 10 to 15 minutes.

For men or in some special cases, a transrectal ultrasound may be performed, where a probe is inserted into the rectum. This usually causes less discomfort than a typical rectal exam.

If a Doppler ultrasound is included (to check blood flow), you might hear whooshing or pulsing sounds during the test. The entire procedure typically lasts less than 30 minutes, and you can resume normal activities right after the exam.

Who Interprets the Results and What Next?

After the ultrasound, a radiologist, a doctor trained to read medical images, will review the pictures taken during the exam. The radiologist prepares a report explaining the findings and sends it to your healthcare provider.

Your healthcare provider will discuss the results with you, explaining what they mean for your health. If the ultrasound shows anything unusual, your doctor may recommend additional tests or treatments. Most often, the results help guide decisions about your care or diagnose the cause of symptoms like pain or bleeding.

Benefits and Limitations

Pelvic ultrasound offers many important benefits. It is a safe, non-invasive, and painless test that uses sound waves instead of radiation, making it very safe for people of all ages, including pregnant women. Ultrasound provides real-time images of pelvic organs, such as the uterus, ovaries, and bladder allowing doctors to see their size, shape, and position. 

It can detect conditions like cysts, fibroids, infections, or pelvic inflammatory disease and can also assist in guiding treatments such as egg retrieval in fertility procedures or checking IUD placement. Additionally, pelvic ultrasound is relatively low cost and widely available compared to other imaging like CT or MRI.

However, there are some limitations. Ultrasound cannot provide a definite diagnosis of cancer or certain diseases, it can only show if something looks abnormal and if further testing is needed. It may have trouble seeing very deep or small pelvic structures, especially in people with obesity or excessive bowel gas. 

Also, while transvaginal ultrasound gives clearer images for women, it may not be suitable for everyone due to discomfort or medical reasons. Despite these limits, pelvic ultrasound remains an essential tool for preliminary diagnosis and ongoing monitoring of pelvic health.

Tips for a Smooth Ultrasound Experience

To ensure your pelvic ultrasound goes smoothly and produces clear images, follow these simple tips:

• Drink plenty of water before the test, usually about 32 ounces (4 cups) about an hour before your appointment, unless your doctor says otherwise. A full bladder helps push pelvic organs into better view during a transabdominal ultrasound.
• Wear loose, comfortable clothing that can be easily removed or adjusted for the examination.
• Arrive on time and follow any specific instructions from your healthcare provider, such as when to empty your bladder (usually before a transvaginal ultrasound).
• Try to relax and stay as still as possible during the scan to help get clearer images.
• Ask questions if you feel unsure or nervous. Technicians and doctors understand the process and are there to help you feel comfortable.
• Leave jewelry at home to avoid delays.
• If you have had a pelvic ultrasound before, share that information with your provider for comparison.

Following these steps will help make the pelvic ultrasound quick, comfortable, and more effective in providing your healthcare provider with the information needed for your care.