Gynecomastia is divided into grade 1, grade 2 and grade 3. Grade Intensity & Procedure Time Characteristics & Treatment Grade 1 Small Intensity – 1 hour Minimal breast tissue enlargement, no skin excess. Treatment: Liposuction or minor excision. Grade 2 Medium Intensity – 2 hours Moderate breast tissue growth, possible mild skin laxity. Treatment: Liposuction