From the perspective of clinical research, several studies showed that FoxP3/rs3761548 SNP is also associated with the development of other autoimmune diseases, such as psoriasis, Behcet's disease (BD), vitiligo, ulcerative colitis (UC), allergic rhinitis, rheumatoid arthritis (RA), multiple sclerosis (MS), Hashimoto's thyroiditis (HT).20, 21, 22, 23, 24, 25, 26, 27, 28. The gene discussed is FOXP3; the disease is hematocrit.