Impact of Video Information Support on Preoperative Anxiety in Breast Cancer Surgery

This study is testing whether showing patients a short video before breast cancer surgery helps reduce their anxiety and improve how well they understand the procedure. It compares a video-based approach to standard pre-operative information. **You may be eligible if...** - You have been diagnosed with breast cancer and are scheduled for a lumpectomy, oncoplasty, or mastectomy - You are 18 or older - You have internet access at home or at work **You may NOT be eligible if...** - You have had previous breast cancer surgery - You have serious physical or psychological health conditions that would affect your ability to participate - You have difficulty understanding spoken French - You are not covered by a national health insurance system - You have not given your informed consent - You are already participating in another research study with an exclusion period Talk to your doctor to see if this trial is right for you.