An endocrinologist is a medical specialist who promotes and treats gland disorders. Synonyms for this profession include hormone expert, glandular specialist, endocrine specialist, hormone doctor, and endocrine doctor. Such professionals are responsible for the diagnosis and treatment of disorders related to hormones produced by the endocrine system. These professionals play an important role in addressing health issues such as diabetes, thyroid problems, pituitary gland disorders, and adrenal gland dysfunction. The role of an endocrinologist is crucial as hormone imbalances can lead to a variety of issues affecting one's quality of life, including weight gain, mood changes, and reproductive issues.