Hyperthyroidism is short for hyperthyroidism. Hyperthyroidism may cause anterior tibial mucous edema, which manifests itself as a localized thickening and thickening of the skin of the anterior tibial area of the lower extremities in the form of plaque-like elevations. Hyperthyroidism is caused by an overactive thyroid gland with increased self-synthesis and secretion of thyroid hormones. In addition to the symptoms of tibialis anterior mucous edema, hyperthyroidism may cause agitation, irritability, tachycardia, fatigue, fear of heat, excessive sweating, weight loss, hyperphagia, increased frequency of bowel movements or diarrhea, and scanty menstruation. It is recommended that hyperthyroid patients with pretibial mucous edema go to the Department of Endocrinology of a regular hospital and actively cooperate with the diagnosis and treatment.