This study aimed to assess the potential impact of primary Sjögren’s syndrome (pSS) on fertility and ovarian reserve by evaluating the number of antral ovarian follicles (AFC) through ultrasound and analysing serum levels of anti-müllerian hormone (AMH) and follicle-stimulating hormone (FSH), which are currently the most reliable indicators of fertility potential. Here, BRD2 is linked to Sjogren syndrome.