1, Hashimoto’s thyroiditis full name chronic lymphocytic thyroiditis, because the Japanese doctor Hashimoto first reported, so named with her name. 2, the main manifestations are: diffuse enlargement of the thyroid gland, hard texture; thyroid function tests suggest: thyroglobulin antibodies, thyroid peroxidase antibodies are elevated; combined with ultrasound typical performance, generally easy to diagnose. 3, after childbirth women are more common, the cause is autoimmune resulting in sterile inflammation, is a long-term slow process of destruction of thyroid tissue. 4, treatment principles: as long as the thyroid function is normal (T3, T4, TSH), generally do not need special treatment. Several antibody values vary in height. The higher the value, the more typical the disease and the more certain the diagnosis, not the more serious the disease. The latest research found that patients with Hashimoto’s thyroiditis have a higher cancer rate than normal thyroid people, but after cancer, inflammation can inhibit the development of cancer, instead of developing more slowly than people without Hashimoto’s thyroiditis.