In the RA group, higher immunoexpression of Wnt‐10b (Figure 4A,B; mean positive area = 81%, p < 0.0001) and β‐catenin (Figure 4C,D; mean positive area = 39.1%, p < 0.0001) was observed in neuronal and glial satellite cells in the trigeminal ganglion, respectively, compared to the control group (mean positive area = 9.3% and 3%, respectively) (Figure 4B,D). Here, WNT10B is linked to rheumatoid arthritis.