In our neck, there is an important “butterfly”-like endocrine tissue, the thyroid gland, growing above the superior sternal fossa. The normal thyroid gland is very thin and cannot be seen or felt in the neck. If you can’t see it, but you can feel it, the thyroid gland is generally considered to be enlarged, and this enlargement can be physiological or pathological, which means that there is a thyroid disease, so how can we do self-detection in our daily life? 1, when you find the thickening of the neck, although there are no other uncomfortable symptoms, you should also think that the thyroid gland is enlarged, should promptly go to the hospital to see a doctor. Generally speaking, your doctor can tell you whether your thyroid gland is enlarged by palpation. Some people with an enlarged thyroid need some laboratory tests and, if necessary, an isotope and ultrasound examination of the thyroid. 2. You should think about the possibility of hyperthyroidism if you have symptoms such as panic attacks, fear of heat, sweating, easy anger, hyperphagia but also weight loss. When you find symptoms such as swelling, fear of cold, dry skin, loss of appetite but still weight gain, you should pay attention to the possibility of hypothyroidism. When you encounter these two conditions, you should visit the hospital for further examination. 3, if the cold does not heal, and you feel pain and fever in the neck, especially if you feel a painful lump in the thyroid area of the neck, you should think about the possibility of acute or subacute thyroiditis, and go to the hospital in time to receive regular.