International Day of Radiology

International Day of Radiology is observed each year on November 8. It celebrates medical imaging and the people who use it to help doctors understand what is happening inside the body. The day also offers a chance to learn how imaging supports safe patient care and why radiology is an important part of modern medicine.

How the day started

According to the International Day of Radiology, the observance is a joint initiative of the European Society of Radiology, the Radiological Society of North America and the American College of Radiology. It takes place on November 8, the anniversary of German physicist Wilhelm Roentgen’s discovery of X-rays. The day aims to build awareness of radiology’s value in patient care and of the role radiologists and radiological technologists play in health care.

What radiology includes

Radiology is the branch of medicine that uses imaging to help diagnose, monitor and sometimes treat health conditions. X-rays are one familiar example, but medical imaging also includes ultrasound, computed tomography (CT), magnetic resonance imaging (MRI) and nuclear medicine imaging. Different methods create different kinds of images, and a health care team selects an approach based on the person’s needs and the question being investigated.

Radiologists are doctors trained to interpret medical images and, in some cases, perform image-guided procedures. They work with radiologic technologists and other health professionals, who help produce images and care for patients during examinations. The work often happens behind the scenes, but imaging findings can help guide decisions made by a patient’s care team.

Why November 8 matters

The observance connects today’s medical imaging with the discovery of X-rays by German physicist Wilhelm Roentgen. His discovery opened a new way to see structures inside the body without surgery. Over time, imaging developed into a broad field with technologies that can show bones, organs, blood vessels and other tissues in different ways.

International Day of Radiology is also an opportunity to recognize that imaging is a team effort. Patients may meet technologists, nurses or radiologists during a scan, while other members of the team review the images and share findings with the referring clinician. Each examination is chosen and carried out for a particular clinical reason, rather than as a one-size-fits-all test.

Ways to celebrate and take part

• Learn the basics of common imaging methods. A hospital, radiology practice or professional radiology organization may offer patient-friendly explanations of what an X-ray, MRI, CT scan or ultrasound involves.
• Thank the imaging professionals you encounter. A kind word to a technologist or other care team member is a simple way to recognize work that patients may not always see.
• Ask questions if you have an upcoming examination. You can ask your health care team why a particular scan is recommended, how to prepare and whom to contact if you have concerns. Follow the instructions provided for your own appointment.
• Share a reliable educational resource with family or friends. International Day of Radiology is a good prompt to talk about how medical images help clinicians make informed decisions.
• For a classroom or family activity, explore how different imaging tools produce pictures in different ways. Keep the conversation focused on learning, and avoid treating images or online descriptions as a substitute for medical advice.

This page is for general awareness and isn't medical advice. For questions about your own health, talk to a doctor or other healthcare professional.

Reviewed by the Holiday List editorial team on November 4, 2026 · Last updated November 4, 2026.

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