There is no necessary connection between hyperthyroidism and psoriasis. Hyperthyroidism, also called hyperthyroidism, is a chronic wasting disease, and its causes are mainly divided into primary and secondary. (1) Primary hyperthyroidism is mainly characterized by hyperthyroidism and goiter. (2) Secondary hyperthyroidism refers to the excessive secretion of TSH by the pituitary gland, which in turn causes the thyroid gland to secrete too much thyroid hormone. Psoriasis, also known as psoriasis, is a chronic inflammatory skin disease, the causes of which are mainly related to environmental factors, genetic factors and immune factors. There is no necessary connection between the two diseases from the point of view of their causes.