The left side of the thyroid gland has nodules, the treatment methods are conservative treatment or surgery, conservative treatment methods can be applied to activate blood circulation and eliminate blood stasis, soften the hardness and dissipate the nodules of traditional Chinese medicine or Chinese patent medicines to be taken orally, commonly used are Xiaojin Pills. In addition, we must also pay attention to the usual dietary habits and living habits, avoid frequent late nights, tiredness, too much pressure, and avoid eating fried, greasy, stimulating food. It is necessary to pay attention to blood tests of the thyroid function to see whether the nodules affect the function of the thyroid gland, if it affects the function of the thyroid gland, according to the corresponding results of the examination to do the corresponding drug treatment. If the nodule is increasing in size, causing pain or pressure on the surrounding tissues, leading to neck compression or breathing difficulties, surgical removal must be performed.