Breast cancer is one of the most common malignant tumors in the world. The surgery of breast cancer has progressed a lot since the early beginnings (Halsted’s radical mastectomy) to more conserving procedures (segmentectomy, tumorectomy). The extent of the surgical treatment is based on the result of the biopsy of the sentinel lymph node. According to earlier guidelines, if the lymph node is positive, the procedure will be expanded to axillary dissection. A novelty in the treatment is to avoid axillary dissection if the patient has up to two positive sentinel lymph nodes and has priorly been subjected to a conserving procedure and postoperative chemotherapy. The purpose of this paper was to show how many of the axillary lymph nodes have been affected if there is a positive sentinel node and how it correlates with the infiltration of sentinel’s capsule, grade and the T stadium of illness. This research has analyzed 77 patients with a positive lymph node in the period of five years and they have been categorized according to several criteria: positivity of the other axillary lymph nodes, affection of the capsule, the grade of the tumor and its T stadium,age and the molecular type of the tumor. In over 65% of the patients the rest of the axillary lymph nodes are negative even though the sentinel lymph node was positive. There was a noticeable connection between the affection of the capsule of the sentinel lymph node and the rest of the axillary lymph nodes that were proven positive (p=0,001). It has also been confirmed that the axillary region is more often affected in the patients with a higher tumor grade and T stadium. According to our results, there is still a large number of unnecessary axillar dissections which supports the new guidelines. A goal that we must aim to in the future is to decrease the number of patients with axillar dissection and to direct the treatment to more conserving procedures.