Pituitary adenomas are common benign tumors that occur mostly in the anterior pituitary gland and are often classified as pituitary microadenomas, pituitary macroadenomas, and pituitary giant adenomas depending on the size of the tumor. Generally, pituitary adenoma has a good prognosis after effective treatment, and most patients can be cured without other sequelae, so it is not serious, but if patients may develop into pituitary giant adenoma without timely treatment, the condition may be more serious. If a pituitary adenoma is not treated in time and develops into a giant pituitary adenoma, it may cause a pituitary adenoma stroke, which is a sudden headache, nausea, vomiting, visual impairment, etc. Some patients may also have a coma and other critical signs, which may even affect their lives. If the patient has a giant pituitary adenoma, sequelae such as hypopituitarism, vision loss, uveitis, and ptosis may occur after treatment. Treatment of pituitary adenomas is often with drugs such as growth inhibitory analogs and dopamine agonists, and some patients may require surgery to improve pituitary adenoma symptoms. Pituitary adenomas are somewhat recurrent and patients are advised to review them regularly after they have been cured.