Adrenal tumor diagnosis requires imaging localization examination and laboratory tests to check its function in order to make a clear diagnosis. The general localization of adrenal tumors requires CT of the adrenal glands, scanning plus enhancement CT to observe its size and shape as well as its location, and whether it is unilateral or bilateral, and so on. The adrenal gland itself is an endocrine gland that secretes many hormones. Because of its location, adrenal tumors need to be looked at to see if they have a secretory function. For example, whether some of the hormones secreted in excess are causing high blood pressure. For example, increased secretion of aldosterone or cortisol hormones or catecholamines can lead to increased blood pressure. At this point, we need to draw blood and urine to test these hormone levels to determine if the adrenal tumor is functional. Non-functional and non-malignant tumors can continue to be observed, but if the tumor is larger than 4 cm in diameter, surgical resection is usually recommended. For functional tumors, drug treatment or surgical intervention is needed, please follow the doctor’s instructions.