Cystic hyperplasia of the breast, also known as lobular hyperplasia, is one of the most common diseases in mammography, accounting for one-third of mammography clinics. The main clinical manifestations are in 3 areas: 1. The lumps in the breast are mostly scattered nodules in both breasts, irregular in shape, varying in size, tough in texture, and can move when pushed, mostly in the upper outer quadrant. They can increase in size before menstruation and become smaller after menstruation. 2.Breast swelling and pain are mostly bilateral before the menstrual cycle or aggravated, after the menstruation swelling and pain relief or disappear. Some of them still have breast swelling and discomfort after menstruation. 3, nipple overflow often unilateral nipples appear yellowish, brown overflow, a small part of the bloody overflow. In general, only those who have breast swelling and discomfort before menstruation, and those who have swelling and pain relief or disappearance after menstruation, do not need treatment and are normal reactions. Cystic hyperplasia of the breast is a watery substance within a breast swelling, mostly of different sizes. Surgery is required in cases where the cyst is larger than 1.0 cm, and in cases of combined malignant possibility. There are two types of surgery: 1) traditional open surgery, which requires preoperative positioning for smaller cysts and removal under direct vision, with larger scars; 2) minimally invasive rotary incision, which is operated under ultrasound machine positioning, with small scars, no stitches and beautiful postoperative appearance. For cysts less than 1.0cm, there is no possibility of malignant disease, no need for surgical removal, 3-6 months to review the ultrasound, compare the size, you can selectively take medication. There is no need to worry too much.