Adrenal nodules are mainly divided into non-functional nodules and functional nodules. Clinically, non-functional nodules, also known as adrenal adenomas, are benign tumors without endocrine function and do not cause obvious adverse effects on the body. In the case of malignant nodules with endocrine function or larger nodules such as adrenal carcinoma, or benign nodules with a diameter of 6 cm, symptoms such as refractory hypertension, paroxysmal hypertension with palpitations, headache and excessive sweating, hyperkalemia, hypokalemia, full-moon obesity and menstrual disorders, generalized hyperpigmentation, hyperandrogenemia, male breast development, etc. may occur, and the patient’s blood potassium, catecholamines, aldosterone, and angiotensin should be checked. The patient’s blood potassium, catecholamines, aldosterone, angiotensin, etc. should be checked for further clarification. If necessary, surgical treatment is required. In summary, most of the small, benign, non-functional adrenal nodules are asymptomatic and usually only need clinical observation and no special treatment; while larger nodules or malignant nodules will have more detailed clinical manifestations and require further examination to clarify the specific nature and, if necessary, surgical treatment.