Lumpectomy  is a common surgery in which cancer or other abnormal tissue is removed from the breast. Lumpectomy is breast-conserving or breast-sparing. ) is also called because, unlike mastectomy, only a part of the breast is removed. It is aggressive.

After preparing the skin and inducing anesthesia to the patient, the skin surgeon cuts the desired area. First, the skin is opened and the tissue to be removed is determined. Then the surgeon examines the tissue to determine its type. In some cases, the tissue is a cyst (a small sac containing fluid), in which case the fluid inside the sac must be drained. The collected fluid is sent to the pathology laboratory for analysis.

In most cases, the lump in the breast is not a cyst and it needs to be removed. In suspected cases of cancer, along with the mass, some of the surrounding tissue is also removed.

After removing the tissue, the surgeon examines the remaining breast tissue for any signs of cancer, and if no tissue is found that can cause problems in the breast, the skin is closed with sutures and the surgery is completed. In some cases, the surgeon also removes a number of related lymph nodes in addition to the target tissue. For this, an incision is made under the arm. The number of lymph nodes removed varies according to the needs and conditions of the patient