Hyperthyroidism well nose bleeding every day may be caused by physiological factors, may also be nasal diseases, blood system diseases and other disease factors, or anti-thyroid drugs side effects caused by. 1. Physiological factors: when the weather is too dry, the mucous membrane of the nasal cavity will also be dry, the capillary rupture of the nasal cavity bleeding will cause nose bleeding; or often digging the nostrils of the crowd if you pick through the mucous membrane of the nasal cavity may also cause nose bleeding. 2. Nasal diseases: dry rhinitis can cause nasal dryness, nose bleeding and nose itching and other symptoms; nasal cavity or sinus new organisms can also cause nose bleeding, such as nasopharyngeal fibroangioma. 3. Blood system diseases: leukemia, thrombocytopenic purpura, aplastic anemia and hemophilia, etc., the patient’s blood clotting function is abnormal, which will lead to daily bleeding from the nose. 4. Side effects of antithyroid drugs: some hyperthyroid patients taking antithyroid drugs, there may be blood system damage, such as leukopenia, granulocyte deficiency, aplastic anemia, thrombocytopenia, coagulation factor reduction, acute hematopoietic stagnation, acute bone marrow failure and other manifestations. It is recommended to go to the hospital and ask the doctor to make a judgment and clarify the cause of the disease if the hyperthyroidism is cured but the nose bleeds every day.