Endocrine organs are distributed throughout the body, including the pituitary gland, thyroid and parathyroid glands, pancreas, adrenal glands, gonads and so on. 1. Pituitary gland: Generally referred to as pituitary gland, it is located in the brain and is divided into adenopituitary gland and neuropituitary gland, which are mainly controlled by the hypothalamus. 2. Thyroid and parathyroid glands: the thyroid gland secretes thyroid hormone, which maintains the body’s excitability and temperature, etc. The parathyroid glands are capable of producing parathyroid hormone, which maintains the metabolism of calcium and phosphorus. 3. Pancreas: It is also an important endocrine organ that can secrete insulin and glucagon for blood sugar regulation. 4. Adrenal glands: The adrenal glands are quite important endocrine organs in the human body, located above the kidneys on both sides, and can secrete a variety of hormones, such as glucocorticoids and salinocorticoids. 5. Gonads: Gonads mainly refer to male testes and female ovaries, testes can secrete testosterone, ovaries can secrete estrogen, progesterone and a small amount of androgens. Endocrine organs secrete a variety of hormones to participate in the physiological regulation of the body, if abnormal secretion occurs, it is recommended to consult a doctor in time.