PCOS Renamed PMOS as Global Health Groups Push for More Accurate Diagnosis

A hormonal condition long known as polycystic ovary syndrome, or PCOS, is being renamed after an international effort involving researchers, clinicians and patients who argued the existing term no longer reflected the full nature of the disorder.

The condition will now be called polyendocrine metabolic ovarian syndrome, abbreviated as PMOS, according to experts involved in the process. The change follows years of discussion among medical professionals and advocacy groups who said the older name focused too narrowly on ovarian symptoms while overlooking the broader hormonal and metabolic aspects of the condition.

Dr. Helena Teede, an endocrinologist and professor of women’s health at Monash University in Australia, said concerns about the name had been building for years among both patients and clinicians.

“It was very clear that the name was inaccurate,” Teede said. She chaired the steering group that led the renaming process and also serves as director of the Monash Centre for Health Research & Implementation.

PCOS affects roughly one in eight women. Despite its prevalence, specialists involved in the review said many people living with the condition felt the name created confusion about symptoms, diagnosis and long-term health impacts.

The move to adopt PMOS came after what organizers described as a broad international consultation process. Thousands of people diagnosed with the syndrome took part in surveys alongside thousands of healthcare professionals from different regions and specialties.

According to Teede, the discussions extended well beyond academic circles. Fifty-six academic, clinical and patient organizations were involved in funding and overseeing the effort, which she described as unusually extensive for a medical renaming initiative.

“It was a really robust process, and the community was involved at all stages,” she told Live Science. “We hope that people will understand and respect the process — understand that it wasn’t made behind closed doors with a few small expert groups, which is what normally happens.”

The transition to the new terminology is expected to take place gradually. Organizers say the next three years will focus on raising awareness among healthcare providers, researchers and patients while encouraging adoption of the new name in medical practice and public health communication.

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For many involved in the process, the change is intended to bring the language surrounding the condition closer to how doctors and patients already understand it in practice. The broader wording, they argue, reflects the multiple systems affected by the disorder rather than concentrating on a single feature referenced in the older name.