You don’t have to remove your pants for a CT, but there are some other precautions, such as the need to remove metal objects from your clothing. CT is also known as electronic computed tomography, CT is not necessary to take off your pants, because CT is a continuous tomography scan around a part of the human body through precise X-rays with a very sensitive detector, X-rays are extremely penetrating and can penetrate the fabric of clothing, so you do not need to take off your pants. However, you should remove metal products from your clothing, such as lapel pins, belts, and metal jewelry, to avoid artifacts that can affect the CT results. You should also abstain from food and water for 8 hours before having an abdominal CT, and you should not take metal medicines, such as bismuth, barium meal, etc., for 1 week before having a CT. In addition, women who are pregnant or likely to become pregnant should not undergo CT. If you need to have a CT, please consult with your physician and have the test performed under his or her supervision.