作者用激光治疗了42例自身免疫性甲状腺炎病人,年龄30～45岁,病程1～5年,均有不同程度甲低表现。其中20例从未治疗者为甲组,22例曾用L-甲状腺素100mg/d治疗无效者为乙组,以仅用上述药物治疗者为对照组。所有患者均有T_H细胞及B细胞增多而T_S细胞减少,及免疫指标T_H/T_S增高。 治疗组42例每天用半导体激光器(λ=0.89μm,脉冲功率5W,脉冲串频率150～ The authors used laser treatment of 42 patients with autoimmune thyroiditis, aged 30 to 45 years of age, duration of 1 to 5 years, with varying degrees of hypothyroidism. Among them, 20 cases never treated were group A, 22 cases had used L-thyroxine 100mg / d ineffective treatment as group B, with only the drug treatment as control group. All patients had T_H cells and B cells increased T_S cells decreased, and immune indicators T_H / T_S increased. In the treatment group, 42 cases were treated with semiconductor laser (λ = 0.89μm, pulse power 5W, pulse frequency 150 ~