What kind of scientist studies endocrine system?

The endocrine system consists of several glands, all in different parts of the body, that secrete hormones directly into the blood rather than into a duct system. Hormones have many different functions and modes of action; one hormone may have several effects on different target organs, and, conversely, one target organ may be affected by more than one hormone.

The answer should be geothermal i hope i’m right message me if i’m wrong and i’ll change my answer and fix it for you