Background: Breast augmentation is the most common surgical intervention among women. However, concerns persist regarding the use of autologous fat grafting for breast augmentation in underweight females.Objective: This retrospective study aimed to evaluate the efficacy and safety of autologous fat grafting in breast augmentation for underweight females (body mass index [BMI] <18.5 kg/m 2 ).Methods: This study included 53 underweight patients who underwent autologous fat grafting for breast augmentation. Standardized protocols were followed, and comprehensive data regarding post-treatment complications were recorded. Volumetric and subjective evaluations were conducted to assess outcomes.
Results:The average age of the patients was 31.6 years, with an average BMI of 17.7 kg/m 2 and body fat percentage of 21.4%. The average volume of aspirates obtained was 1,410 ml, and each breast received an average injection volume of 295 ml fat. Routine postoperative assessments revealed fat necrosis of 3.7%. The mean volume retention of the grafted fat was 69.9% at the one-year mark, and the overall patient satisfaction rate was 94.3%.
Conclusion:Autologous fat grafting can be challenging in underweight women because of limited fat reserves and tight breast skin.Strategies such as ultrasound-assisted liposuction and precise injection techniques can overcome these challenges. The study suggests that a BMI <18.5 kg/m 2 is not a contraindication for autologous fat grafting in breast augmentation. Autologous fat grafting can be effective and safe for breast augmentation in underweight women, with satisfactory results and minimal complications.