MDs, or Medical Doctors, are professionals who have completed extensive education and training in the field of medicine. They typically earn a medical degree from a recognized institution and undergo residency training to specialize in various areas, such as pediatrics, surgery, or internal medicine. MDs diagnose and treat illnesses, prescribe medications, and provide preventive care to patients. In addition to clinical practice, MDs may also engage in research, teaching, or administrative roles within healthcare settings. They are often required to maintain their medical licenses through continuing education and must adhere to ethical standards set by organizations like the American Medical Association.