Gynecomastia surgery (reduction mammaplasty / male chest contouring) is a procedure for the enlargement of male breast tissue due to hormonal imbalance, medications, certain health conditions or unknown causes. The aim is to reduce excess glandular tissue, fat and skin, thus achieving a flatter and firmer chest contour.

This ISAPS Informed Consent outlines the classification of gynecomastia, the nature of the surgery, procedural goals and expected outcomes, preoperative instructions, potential risks and complications, postoperative care and recovery, and alternatives to surgery.