This special edition aims to highlight recent breakthroughs or advances, new technologies or challenges in the field of endocrinology. We, together with the leadership team of Specialty Chief Editors, have identified the following areas of endocrinology where new discoveries were made recently which have led to new questions and challenges for the future:

Diabetes and Obesity
Cancer Endocrinology
Bone Research
Neuroendocrine Science
Reproduction

With this special collection we hope to further explore the frontiers of endocrinology within and across specialties of endocrinology.

Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.