Breast cysts mainly occur in middle-aged women, and new cysts rarely appear in postmenopausal women, so the occurrence of breast cysts is closely related to the stimulation of ovarian endocrine secretion, the duration of breast cyst onset varies, the longest breast cyst is more than 10 years long, most patients with breast cysts have no conscious symptoms, a few patients have breast pain and swelling when the milk ducts start to expand in the early stage, and the pain disappears when the cyst development is complete. The pain is persistent and may also be significant before the onset of menstruation and reduce or disappear after menstruation. Treatment of breast cysts, cystic breast disease should be treated mainly by surgery, and the location of the lesion should be clarified before surgery. The symptoms of breast cysts are mostly located in the center of the breast, around the nipple, especially above the nipple. They are usually seen in middle-aged women. Patients often have a history of breast inflammation and trauma to the breast resulting in obstruction of the large ductal opening. How can breast cysts be treated? Generally, the common breast cysts are simple cysts and cumulus cysts. Most simple cysts require surgery. However, the possibility of malignant change should be excluded before surgery to determine the scope of surgery.