Breast cystic nodules, also known as breast cysts, are a breast disease. Breast cysts are usually associated with maldevelopment of breast structure, inflammatory infections and other factors; the symptoms of the disease are not obvious at the initial stage; when the cysts gradually increase in size, a few patients may have symptoms such as limited pain, nipple milk overflow, occasional redness, swelling and pain in the breast, fever, etc. Some patients with severe conditions may be accompanied by enlarged lymph nodes. Comparatively small breast cysts generally do not require special treatment, regular observation can be; if the breast cysts in the gradual increase in size, and accompanied by obvious pain, should be as soon as possible to do cystectomy. At present, it is recommended that patients should go to regular hospitals for timely consultation, and the clinician should combine the examination to formulate a treatment plan, and patients should follow the instructions to accept the treatment.