Hypothyroidism, or hypothyroidism, is an organic lesion that occurs when the normal function of the thyroid gland is affected by disease or other factors. Hypothyroidism has many symptoms, such as delayed growth, indifference, dry skin, mucinous edema, weight gain, decreased libido, anemia, and fear of cold. Due to the thickening of the dermis and epidermis, the blood supply to the skin is reduced and the skin becomes pale and cold. The reduction in secretion of sebaceous glands and sweat glands will aggravate the dryness of the skin, dry and brittle hair, and the nails will grow slowly and become thickened and brittle. In addition, hypothyroidism is characterized by memory loss, mental retardation, unresponsiveness, anxiety, nystagmus, deafness, dizziness, and headache. Hypothyroidism also has a significant impact on the digestive system. Patients may experience a range of symptoms such as anorexia, bloating, constipation, and lack of stomach acid. Since the lack of stomach acid affects digestion and absorption, anemia can easily occur. Hypothyroidism also has a significant impact on the endocrine system, causing endocrine disorders, which can lead to excessive menstruation, amenorrhea, infertility, etc. in women and a series of symptoms such as impotence and loss of libido in men.