Whether adrenal low density nodule 1.5 cm needs treatment, mainly to determine whether the nodule is functional, whether it is malignant and so on. If the nodule is functional, surgical treatment can be adopted, and the treatment method is recommended to consult your doctor. 1. Functional nodules: Surgery is recommended for functional nodules. Functional nodules refer to nodules that have the function of secreting hormones, which can lead to an increase in the secretion of adrenal hormones, including an increase in the secretion of aldosterone and an increase in the secretion of cortisol, and so on. Adrenal nodules caused by aldosterone tumors can lead to high blood pressure and low blood potassium, and can also lead to cardiac arrhythmia, so they need to be actively treated, which is a kind of secondary hypertension, and cortisolism can cause centripetal obesity, etc., which also need to be actively given treatment. 2. Non-functional nodules: Non-functional adrenal nodules generally do not require special treatment. If the nodules are benign, it is recommended to pay attention to regular review and observe the growth rate and size of the nodules. If you find adrenal low-density nodules, consult the endocrinology department of regular hospitals.