Endocrinology studies the working of the endocrine system and hormones.

It is the science of the endocrine system and hormones in a wide range of animals. Endocrinology is also a medical specialty. This means that when a doctor finishes studying medicine in general, they can choose endocrinology as the part of medicine they work in.

The endocrine system consists of several glands in different parts of the body. They secrete hormones directly into the blood. Hormones have many different functions and modes of action.