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How Disease Names Change—and Why PCOS Is the Latest Example

How Disease Names Change—and Why PCOS Is the Latest Example

Summary

Polycystic ovary syndrome (PCOS), a condition affecting around 170 million women worldwide, has been renamed polyendocrine metabolic ovarian syndrome (PMOS). This change reflects new research showing the condition involves more than ovarian cysts; it is a hormonal and metabolic disorder affecting the whole body. Disease names often evolve as medical knowledge and patient experiences grow, and sometimes names change to reduce stigma.

Key Facts

  • PCOS has been renamed PMOS after 14 years of research and patient input.
  • The new name better describes the condition as a whole-body hormonal and metabolic disorder.
  • Around 170 million women worldwide are believed to have this condition.
  • Disease names influence how illnesses are understood, diagnosed, and treated.
  • Name changes can result from advances in science and feedback from patients.
  • Some disease names have changed to reduce stigma, such as monkeypox being renamed mpox.
  • Historical examples include HIV/AIDS, which was originally misnamed GRID, causing stigma.
  • Naming diseases after doctors was common in the past but is now less frequent.
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