Considering that Hashimoto's thyroiditis induces and participates in the occurrence and development of human autoimmune diseases by secreting the same IL-6 and IL-2 cytokines in lymphocytes and part of thyroid tissue cells as IL-17, it can be inferred that IL-17 is involved in the occurrence and development of Hashimoto's thyroiditis. Here, IL17A is linked to Hashimoto thyroiditis.