Overview
- The study, published Tuesday, July 28, 2026, analysed genetic data from over 2.5 million adults across multiple countries and included about 55,000 people diagnosed with fibromyalgia.
- Researchers found DNA variants in 26 genomic regions that affect fibromyalgia risk, with one of the strongest signals mapping to the HTT gene known for its role in Huntington’s disease.
- Authors say the genetic pattern points to altered pain processing and nervous-system biology as central to fibromyalgia, challenging the idea the condition is purely psychological.
- Researchers note that HTT-linked drug research for Huntington’s could provide mechanistic leads but emphasise that genes alone do not explain who develops fibromyalgia and that environmental triggers must be studied first.
- The study also shows genetic overlap between fibromyalgia and other chronic pain and functional disorders, a finding that could guide future diagnosis, therapy development, and how patients are understood and treated.