There is no clear distinction between adrenal adenoma and adrenal nodule, which can be called adrenal adenoma, adrenal nodule, or adrenal occupancy, because the nature of the disease is unknown, so some general terms are used. 1. When the nature of the specific lesion is clear, then the specific cause can be named directly, such as adrenal pheochromocytoma, adrenocortical adenoma, aldosteronoma or 2. However, when the nature of the lesion is not clear, it can only be named by a general term, such as adrenal nodule, adrenal adenoma, and adrenal occupancy. They all refer to primary or secondary lesions of the adrenal gland, which manifest as some tumor tissues different from the density of the adrenal gland and different from the origin of the adrenal tissue, most of them are benign, but still have the possibility of malignancy and also the possibility of metastatic cancer. Therefore, a whole body examination, including hormone series, is needed to further clarify the specific nature, make an accurate diagnosis, and formulate a reasonable treatment plan.