The symptoms of hyperthyroidism are complex and it is a relatively common endocrine disease. If this disease is not treated in time, it is likely to aggravate the disease and affect the recovery period. Because, in order to be able to detect hyperthyroidism in time, it is necessary for us to know through which symptoms to determine hyperthyroidism. The early symptoms of hyperthyroidism are as follows: 1. Enlarged thyroid gland: mostly diffuse symmetrical enlargement, a few asymmetrical, or obvious enlargement. At the same time, blood flow in the thyroid gland increases, and vascular murmurs can be heard and tremors can be felt in the upper and lower lobes, especially in the upper part of the gland. This sign is characteristic and has important significance in diagnosis. 2. Mental system: Early symptoms of hyperthyroidism include agitation, mental allergy, talkative and hyperactive, insomnia and nervousness, lack of concentration, anxiety and irritability, suspicion, sometimes hallucinations, mania, sometimes reticence and depression. 3, protruding eyes: the patient’s eyes protrude, the eyes stare or show frightened eyes, often photophobia, lacrimation, diplopia, vision loss, eye swelling, stinging, foreign body sensation, etc. Due to the high protrusion of the eye, the upper and lower eye face can not be closed, corneal ulceration, conjunctiva, corneal exposure and cause congestion, edema, etc., serious cases can lead to blindness. 4, endocrine system: excessive secretion of thyroid hormones in addition to affecting gonadal function, adrenal cortical function is often more active in the early stage of the disease, while in patients with severe disease (such as critical signs), its function is relatively reduced or incomplete, irregular menstruation, endocrine imbalance, etc. 5.Motor system: The main manifestations are muscle weakness and hypokalemia, and a few can be seen as hyperthyroid myopathy. 6. Hyperthyroid heart disease: palpitations, heart fibrillation, etc. When you are unwell or feel uncomfortable, you should go to the hospital in time to check and confirm the diagnosis, and make appropriate treatment and care according to your situation.