Pituitary cysts are not very serious and need to be regularly reviewed accordingly to clarify the development of the condition. Pituitary cysts are abnormalities in the development of the pituitary gland that result in the formation of cystic material. If you look deeper, many cysts are filled with water, which is mainly normal cerebrospinal fluid (CSF). Unlike tumors, which do not distinguish between benign and malignant, or vascular disease, which may rupture and bleed, cysts grow slowly and may rapidly increase in size at a certain period of time, compressing the surrounding neural tissue or pituitary tissue and causing a series of clinical symptoms. As long as the patient does not have obvious clinical symptoms, no special treatment is needed, unless there are obvious clinical symptoms resulting in a variety of functional deficits, need to actively carry out appropriate surgical treatment.