Non-concave mucinous edema is the characteristic clinical response to thyroid hormone deficiency in adults. Primary hypothyroidism (hypothyroidism) is the most common type and is probably an autoimmune disease. It usually occurs as a result of Hashimoto’s thyroiditis and is often accompanied by a firm enlarged thyroid gland, which later develops as the disease progresses to a shrunken, fibrous thyroid with no or little function. The second most common type is post-treatment hypothyroidism, especially due to hyperthyroidism with radioactive iodine and surgical treatment, propylthiouracil, tabazol and iodine overtreatment of hypothyroidism, which often recovers after termination of treatment, and mild hypothyroidism commonly seen in older women. So what are the screening tests for non-concave mucinous edema? Here’s what we can tell you. 1, thyroid function test: It is to reflect the function of the thyroid gland by checking the relevant hormones secreted by the thyroid gland. It is generally divided into 5 types of hormones: TT3 (triiodothyronine), TT4 (thyroxine), TSH (super-sensitive thyroid stimulating hormone), FT3 (free T3), FT4 (free T4) and 2 types of antibodies: TPO-Ab (thyroid peroxidase antibody) and TG-Ab (thyroglobulin antibody). Depending on the needs of the patient’s condition, 3, 5 or 7 tests will be performed under the guidance of a specialist. 2. Routine blood test: If the serum thyroid stimulating hormone is increased, it means primary hypothyroidism, and the lesion is in the thyroid gland; if the serum thyroid stimulating hormone is decreased, it means secondary hypothyroidism, and the lesion is in the hypothalamus or pituitary gland. Hypothalamic-pituitary-thyroid axis functional examination: including T3 suppression test, thyroid tablet suppression test, serum hypersensitivity thyroid stimulating hormone measurement (S-TSH) and thyrotropin-releasing hormone excitation test (TRH excitation test). 4.X-ray examination: make cranial plain film, CT, magnetic resonance or ventriculography, which can accurately detect enlarged heart, slowed heartbeat, pericardial effusion and enlarged butterfly saddle in patients with non-sunken mucinous edema.