1. What is a pituitary cyst? Pituitary cysts, the technical term is pituitary Rathke (Lachrymal) cysts, or pituitary colloid cysts. It is a cyst containing cystic fluid that grows in the middle of the pituitary gland and is a congenital, benign lesion. 2.What symptoms can pituitary cysts cause and what are the risks? When pituitary cysts grow to a certain extent, they can cause headache by compressing the adjacent dura mater and other structures, pituitary dysfunction by compressing the pituitary gland, and vision loss and or visual field loss by squeezing the optic nerve. In a small number of cysts, bleeding within the cyst occurs, i.e. cystic stroke, and the volume of the cyst increases rapidly, causing acute compression symptoms. 3.When do I need surgery? The vast majority of pituitary cysts do not cause symptoms, i.e. asymptomatic pituitary cysts, which do not require treatment and only need to be followed up and observed. A small number of pituitary cysts cause headache, endocrine disorder and visual impairment, which means symptomatic pituitary cysts need to be treated surgically. 4.Is there any minimally invasive treatment method? Yes, pituitary cysts are treated by minimally invasive neuroendoscopic transnasal-paranasal sinus surgery. 5.What is the general way of surgery? Using a neuroendoscope, with a small incision inside the nasal cavity, the neurosurgeon can use this tiny passage to reach the pituitary gland and perform minimally invasive surgical treatment of pituitary lesions. Since the incision is made inside the nasal cavity, no traces of the surgery can be seen on the outside. 6.What is the result of the surgery? Through surgery, the pressure of the cyst is relieved, and most patients’ symptoms such as headache, endocrine dysfunction, and optic nerve dysfunction can be relieved or improved. In a small number of patients, if the symptoms are already severe before surgery, such as obvious uveitis and prolonged visual impairment, it may be difficult to improve after surgery, but the surgery can prevent the aggravation of symptoms or other symptoms. As with other diseases, early detection and timely treatment are necessary to obtain better results.