Hypothyroidism is a clinical syndrome caused by thyroid hormone deficiency and decreased metabolic activity of the body.
hypothyroidism
Definition of thyroid function decline :
That is, hypothyroidism, which occurs in adults is called "hypothyroidism in adults". In severe cases, it is called myxedema, so it is also called "myxedema", and coma is called "myxedema coma". Infant onset, severely affects brain and body growth and development, and becomes a dementia dwarf, known as "dementia" or "cretinism".
Clinical manifestations of thyroid function decline
The clinical manifestation of the milder is not obvious, and the severe non-recessive edema caused by mucopolysaccharide infiltration in the skin may occur, such as the characteristic myxedema face, indifferent expression, dull response, rough skin, pale, eyelid, face Puffiness, narrow eyes, laborious eyes opening, thick lips, thick tongue, thin hair, dryness and shedding, 1/3 of the eyebrows fall off, hoarse, monotonous like frog sounds, hearing loss, chills, cold limbs, mental retardation, sleepiness or insomnia , Dizziness, sluggish movements, disorders, loss of appetite, constipation, fatigue, shortness of breath, crisp and thick nails, non-depression edema in both lower limbs, weight gain, slow Achilles tendon reflexes, hyposexuality, impotence in men, irregular menstruation in women or Amenorrhea, infertility and other symptoms of reduced metabolism.
Causes of thyroid function decline
Modern medicine believes that hypothyroidism can be caused by abnormal functions of the thyroid, pituitary, and hypothalamus. Endemic goiter is hypothyroidism caused by insufficient iodine in the diet. Goiter is a hyperplasia of the thyroid gland. Because of iodine deficiency, the thyroid cells activate hyperplasia to draw more iodine from the blood, which eventually leads to an enlarged thyroid. Mothers with autoimmune thyroid disease during pregnancy, hypothyroidism or thyroid hormone synthesis disorders can also cause hypothyroidism in newborns. The most common cause of hypothyroidism in adults is the damage to the thyroid itself, which is mainly caused by the late development of autoimmune thyroiditis (also known as Hashimoto's disease). It is the cause of adult hypothyroidism in women over 40 years of age. Secondly, hypothyroidism caused by thyroid surgery or radionuclide treatment due to hyperthyroidism is occasionally seen after radioactive treatment of thyroid pain in the neck, acute thyroiditis, etc. In addition to thyroid disease, a few can cause thyroid hormone synthesis and secretion due to pituitary or hypothalamic disease Obstacles and hypothyroidism.
