A meta-analysis of 188 studies on hypoparathyroidism after thyroid surgery revealed significant heterogeneity in the definitions and diagnostic criteria for hypoparathyroidism, highlighted the lack of consistency in the reporting of key surgical variables (such as number of parathyroid glands identified or preserved, use of autotransplantation, inadvertent excision confirmed by histology, and postoperative PTH and calcium levels), and recommended a unified framework for reporting to enable comparative analysis across studies and cohorts7. This evidence concerns the gene PTH and hypoparathyroidism.