Electrosurgical Bipolar Systems Versus Conventional Electrocautery After SLNBx

This study is comparing two surgical tools — an electrosurgical bipolar system versus standard electrocautery — used during breast-conserving surgery and sentinel lymph node biopsy for breast cancer. The goal is to see which method causes less fluid buildup (seroma) and fewer complications after surgery. **You may be eligible if...** - You are a woman between 20 and 80 years old - You are scheduled for breast-conserving surgery with a sentinel lymph node biopsy - Your BMI is over 25 or you have received neoadjuvant (pre-surgery) chemotherapy - Your cancer has not spread to distant organs - Your performance status is adequate (ECOG 0–2) **You may NOT be eligible if...** - Imaging suggests lymph node enlargement or cancer spread to the armpit - You are having a full mastectomy - You are a male breast cancer patient - You have cancer in both breasts - You are unable to read or understand the consent form Talk to your doctor to see if this trial is right for you.