In today’s booming worldwide healthcare industry, medical imagery is one of the most popular subjects among designers, photo editors and book publishers. With over 100,000 medical stock images ranging from studio shots of hospital staff and candid photos taken inside the operating room, to eye exam charts and icons of the heart, Bigstock’s extensive health and medical category is like its own niche library. Check out these 18 images below, or a wider range of shots in our “Best of Medical” lightbox, or try a simple keyword search for “medical.”