While no difference in BCL6 HSCORE between patients without endometriosis and those with minimal endometriosis (stage I) could be demonstrated (HSCORE 2.095 (p25 = 1.890; p75 = 2.425) versus 2.012 (p25 = 1.825; p75 = 2.645), p = 0.9829), in the case of severe endometriosis (stage IV) associated with infertility, a higher HSCORE for BCL6 was observed (HSCORE 3.625 (p25 = 2.948; p75 = 3.875) versus 2.095 (p25 = 1.890; p75 = 2.425, p = 0.0053) (Figure 2B). Here, BCL6 is linked to endometriosis.