Endocrinology is all about hormones, which are naturally produced chemicals that influence the way our bodies work.  When a hormone goes wrong (usually when the body produces too much or too little), then the part(s) of the body linked to that hormone starts to work incorrectly and, as a result the person becomes unwell. People can be born with a hormone problem (this is called a congenital problem) or can acquire a hormone problem at any age. Because a single hormone can influence many parts of the body, the symptoms and signs of a problem may be difficult to pick up on.

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