The results showed that there were significantly more Macrophages M1 in the MDS group than in the normal group (p = 0.022), while the B cells memory (p = 0.020) normal group and T cells CD4 memory resting (p = 0.004) of the MDS group were significantly less than in the normal group (Figure 9C), while in the OA disease group Mast cells resting was significantly different from the normal group in terms of relative number and was highly expressed in the disease group (Figure 9D). Here, CD4 is linked to myelodysplastic syndrome.