Breast conservative therapy is considered an adequate therapeutical method for early stage breast cancer. Breast conservative treatment consists of partial mastectomy, axillary dissection and radiotherapy. Patient selection is based on clinical, histological and individual factors. The frozen sections examination provides prompt differentiation between benign/malign lesions and precise assessment of the oncologic margins of the specimen. Preoperative marking of nonpalpable breast lesion with hook wire represents a progress for breast conservative treatment. Sentinel lymph node biopsy represents an alternative to axillary dissection, in order to reduce subsequent morbidity.