What is an ultrasound?
An ultrasound is a medical test that uses sound waves to make pictures of the inside of your body. It’s often used to look at organs, tissues or a baby during pregnancy. It’s safe, doesn’t hurt and doesn’t use radiation.
Who is a candidate for an ultrasound?
Anyone can get an ultrasound if a doctor thinks it’s needed. It’s commonly used for people who:
- Are pregnant and need to check on the baby
- Have pain, swelling or a lump in the body
- Need help checking their heart, liver, kidneys or other organs
- Need a guide for certain treatments like a biopsy
What can you expect during an ultrasound?
Ultrasounds are quick and easy. Here’s what usually happens:
- You lie down on a table
- A special jelly is placed on your skin
- A small device (called a probe) is moved over the area
- The screen shows pictures in real time
- It usually takes 15 to 45 minutes, depending on the area being checked
You may need to drink water before some types of ultrasounds or avoid eating for a few hours.
What are the risks for an ultrasound?
Ultrasounds are very safe. They don’t use radiation, so they don’t carry the same risks as X-rays or CT scans. Most people don’t feel anything during the test except a little pressure from the probe.
There are no known long-term risks, and they can even be done on babies before birth.
What does recovery from an ultrasound entail?
There’s no recovery time needed after an ultrasound. You can go back to your normal activities right away. If the test was done to help with a procedure (like draining fluid or guiding a needle), your doctor will give you special instructions afterward.
Your doctor will usually share the results soon after the test, or at your next appointment.