According to Western blotting, the expression of caspase-1 in endometritis tissue increased by 41.8% compared with the healthy group (Figure 5B), the expression of caspase-4 increased by 34.7% compared with the healthy group (Figure 5C), the expression of ASC was increased by 23.2% compared with the healthy group (Figure 5D), the expression of GSDMD-N was increased by 24.1% compared with the healthy group (Figure 5E), and the expression of NLRP3 was increased by 25.4% compared with the healthy group (Figure 5F). This evidence concerns the gene CASP4 and endometritis.