Expanding disease definitions

Lucy was only 14 when she learnt she may develop fertility problems. It was distressing news for someone who went to see her GP about irregular periods. Her doctor said she might have a hormonal condition called polycystic ovary syndrome (PCOS) and she should drop [...]

A broader definition of polycystic ovary syndrome (PCOS) has lead to a steep increase in diagnoses. But misdiagnosis may be causing unnecessary fear and anxiety among women.