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Hematologist vs. Endocrinologist: What Are the Differences?

Learn about the two careers and review some of the similarities and differences between them.

Hematologists and endocrinologists are both medical doctors who specialize in treating disorders of the blood and endocrine system, respectively. Though both roles are important in the medical field, there are several key differences between them. In this article, we discuss the similarities and differences between hematologists and endocrinologists, and we provide helpful tips for choosing a medical specialty.

What is a Hematologist?

Hematologists are medical doctors who specialize in the diagnosis and treatment of blood disorders. They often work in hospitals or private clinics and may see patients of all ages. Hematologists use a variety of diagnostic tests to assess blood count, clotting time, blood cell morphology and more. They also often perform bone marrow biopsies to diagnose or rule out certain blood disorders. Hematologists may also provide treatment for blood disorders, which can include prescribing medication, performing blood transfusions or administering chemotherapy.

What is an Endocrinologist?

Endocrinologists are medical doctors who specialize in diagnosing and treating hormone-related conditions. They often work with patients who have diabetes, thyroid problems, pituitary disorders and other hormone imbalances. Endocrinologists may also work with patients who have problems with their adrenal glands, calcium metabolism or reproductive system. They conduct physical exams, order and interpret lab tests and imaging studies, and prescribe medication. They also provide patient education on lifestyle changes that can help manage hormone-related conditions.

Hematologist vs. Endocrinologist

Here are the main differences between a hematologist and an endocrinologist.

Job Duties

Both hematologists and endocrinologists perform diagnostic procedures, such as blood tests, biopsies and CT scans. They also administer treatment plans for their patients with diseases related to the functions of their respective specialties. For example, an endocrinologist may prescribe medications to regulate a patient’s hormone levels. An hematologist may recommend therapies for blood-related conditions, such as bone marrow transplants.

Endocrinologists typically focus on the hormonal processes in the body that relate to metabolism, growth and development, reproduction and energy usage. Conversely, hematologists concentrate on disorders related to blood formation and function. This means that hematologists tend to treat more types of anemia and other red blood cell issues. Endocrinologists are more likely to diagnose and treat conditions related to hormones.

Job Requirements

Hematologists and endocrinologists must first earn a bachelor’s degree in a relevant field, such as pre-medicine or biology. They then attend medical school to earn their Medical Doctor degree. After medical school, hematologists and endocrinologists must complete a residency program, which could take several years. Finally, they must obtain licensure from the state they plan to practice and pass the U.S. Medical Licensing Examination.

Work Environment

Hematologists and endocrinologists work in different environments. Hematologists typically work in hospitals, where they may see patients with blood disorders or cancer. They also work in private practices, where they can treat patients who have a variety of conditions related to the blood.

Endocrinologists usually work in hospitals, but some may also work in private practices. Endocrinologists often work closely with other doctors and nurses to provide care for their patients.


Both hematologists and endocrinologists use analytical skills to examine data and make diagnoses. They also need to be able to effectively communicate with patients and other medical professionals. However, there are some key differences in the skills each type of doctor uses on the job.

Hematologists focus on blood and blood disorders. As such, they need to have a strong understanding of how blood works and be able to identify abnormalities. They also need to be skilled in performing various tests, such as blood counts and clotting time tests. In addition, hematologists often work with cancer patients and need to have the ability to provide emotional support.

Endocrinologists focus on the endocrine system, which regulates hormones. They need to be able to identify hormone imbalances and understand how different hormones can affect the body. They also often work with patients who have diabetes and need to be skilled in managing this condition.


Hematologists and endocrinologists are both medical doctors who specialize in different areas of medicine. Hematologists specialize in blood disorders, while endocrinologists specialize in the endocrine system. The average salary for a hematologist is $203,473 per year, while the average salary for an endocrinologist is $212,344 per year.


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