What type of doctor diagnoses and treats diseases of the internal organs such as the heart and lungs?

An internist is a physician who specializes in internal medicine, which focuses on the diagnosis and treatment of diseases affecting the internal organs, including the heart, lungs, liver, and kidneys. Internists are trained to handle a wide array of conditions, often managing complex and chronic illnesses. They provide comprehensive care for adults, conducting physical examinations, ordering diagnostic tests, and developing treatment plans tailored to the individual's health needs.

The role of an internist is pivotal in the health care system, as they serve as primary care providers for many adults, addressing preventative care, wellness checks, and ongoing management of conditions like hypertension or diabetes. Their extensive training in internal medicine allows them to give detailed insights into how various organ systems interact and affect overall health.

In contrast, a pediatrician focuses specifically on children's health, a neurologist specializes in disorders of the nervous system, and an oncologist is dedicated to diagnosing and treating cancer. Each of these specialists plays a crucial role in health care, but the internist's expertise lies specifically in the management of adult internal medicine. This specialization makes the internist the ideal choice for diagnosing and treating diseases related to the internal organs.