Pituitary adenomas are classified according to their tumor cells secreting different hormones as follows: non-functioning pituitary adenoma – the main symptoms are mostly caused by the size of the tumor; prolactin adenoma – hyperprolactinemia, which in female patients mostly causes menstrual disorders, amenorrhea, In female patients, it causes menstrual disorders, amenorrhea, lactation, infertility, and in male patients, it causes impotence, sexual dysfunction, infertility, visual impairment, etc. In male patients, it causes impotence, sexual dysfunction, infertility, and visual impairment. Pituitary growth hormone adenoma – the onset of the disease in adolescents and children often causes gigantism, which can exceed 2 meters in height. Pituitary thyrotropic hormone adenoma – causes hyperthyroidism, arrhythmia, and atrial fibrillation.