Radiology is important to study when you're in or want to be in the medical field because it allows doctors and nurses to see what's going on inside the body when it's not visible to the naked eye. If you're a radiologist, you work with all sorts of medical disciplines, from emergency medicine to oncology to surgery to orthopedics to obstetrics. You can help save lives by taking medical images and helping doctors diagnose and treat injuries and conditions. Doctors often can't treat patients without the medical imaging that radiology provides, so if you choose a career in radiology, you'll perform a much-needed service.