Your belly (abdomen) extends from just below your chest to the top of your pelvis. It contains many vital organs, including your spleen, liver, gallbladder, pancreas, bladder, intestines, and stomach. These organs can be injured by the impact from a car accident or fall. Blunt trauma is an injury from a dull object or force. This type of injury doesn't break through (pierce) your skin.

An abdominal injury can be very serious. For that reason, it's important to call 911 if you've had a blunt injury to your abdomen. You should be taken to the ER by trained medical staff in an ambulance. The effects of blunt trauma often don't appear right away. So it's important to see a doctor after a hard blow to the abdomen, even if you feel okay.

Your vital signs (temperature, breathing, blood pressure, and pulse) will be checked. You'll also be examined carefully for injuries. Severe trauma may need surgery right away. Otherwise you'll be watched closely for a time. You may also need to have one or more tests to find out the extent of your injuries. These may include:

• Blood or urine tests. These may be used to determine injuries and how well the organs are working.
• X-rays. These imaging tests use radiation to take pictures of inside the body. They are mostly used to look for broken bones and problems with your heart and lungs.
• CT scans. These use a computer and a special type of X-ray machine to give detailed pictures of the inside of your body. This can show problems with bones, as well as with organs, such as your kidneys, spleen, liver, and stomach.
• Ultrasound. This uses sound waves to make images of the organs, tissues, and other structures in your abdomen. It can also quickly find internal bleeding if it's there.
• Diagnostic peritoneal lavage. For this test, a needle and plastic tube (catheter) are put through the skin into your abdomen. This is to check fluid from your abdomen for signs of blood (internal bleeding). This procedure is rarely used anymore since ultrasound and other imaging have become so fast and accurate at finding internal bleeding.

Based on the test results, you may be admitted to the hospital. Or you may have further care in the ER.

After treatment, contact your doctor right away if you have any of these:

• Upset stomach (nausea) or vomiting
• Changes in bowel or bladder habits, such as constipation or making less urine than usual
• Fever

Call 911 or get medical care right away if any of these occur:

• Weakness or fainting
• Blood in your stool or urine or vomit
• Fast heart rate (tachycardia)
• Low blood pressure (hypotension)
• Trouble breathing
• Increase pain or swelling in your abdomen