What is the term for a physician who specializes in treating diseases related to the internal organs of the body?

The term for a physician who specializes in treating diseases related to the internal organs of the body is "Internist." Internists are specialists who focus on diagnosing and treating a variety of conditions that affect internal organs such as the heart, lungs, liver, and kidneys. They are trained to manage complex illnesses and take a comprehensive approach to patient care, which often includes preventive medicine and chronic disease management.

Internists typically do not perform surgery, unlike surgeons who are trained specifically for that purpose. A general practitioner, while knowledgeable about a wide range of health issues, does not specialize exclusively in internal medicine and may not have the same depth of training in complex internal conditions. Cardiologists, while experts in heart-related diseases, are just one subspecialty within internal medicine focusing specifically on cardiovascular issues. Therefore, internists hold a distinctive role in the healthcare system as specialists in internal medicine.