It is not recommended to check the thyroid gland to determine whether there is any abnormality. If you find that the thyroid gland is enlarged or the neck is thickened, or you have symptoms such as panic attacks, sweating, loss of weight, trembling hands, fear of cold, and puffiness, you need to consider the possibility of thyroid disease and should consult a doctor in a timely manner. 1. You can tilt your head back slightly in the mirror to see if there is any localized enlargement of the thyroid gland, or if there is any thickening of the neck. If there is, you may consider thyroid diseases, such as diffuse goiter. 2. When one finds symptoms such as panic, fear of heat, sweating, hyperphagia, increased frequency of bowel movements and emaciation, there may be the possibility of hyperthyroidism; when one finds symptoms such as swelling, fear of cold, dry skin and loss of appetite, there may be the possibility of hypothyroidism; if one feels pain in the neck with fever, it is necessary to rule out the possibility of acute or subacute thyroiditis. When related symptoms occur, you should consult a doctor in time, complete the thyroid ultrasound and thyroid function tests under the guidance of the doctor, and carry out the appropriate treatment.