A Novel Application of a Single-Entry Injection Technique for Non-surgical Penile Enlargement: A Case Report

Non-surgical penile enhancement using dermal fillers is a growing trend, yet traditional techniques often result in uneven volume distribution, poor integration, increased risk of filler migration and/or vascular complications. These limitations reduce aesthetic quality and patient satisfaction. We introduce the Cylindrical Dartos-Buck Smooth (CDS) technique, a novel single-entry, cannula-based method designed for even filler distribution within the sub-Dartos/Buck's fascial plane to achieve natural, uniform penile augmentation. We present the case of a 29-year-old male who underwent the CDS technique with 15 mL of dermal filler via an 18-G blunt-tip cannula through a single mid-shaft entry point. Dermal filler was deposited in structured micro-droplets along the target fascial layer. At six-month follow-up, the patient demonstrated a 0.63-inch increase in girth, natural tactile feel, uniform volume distribution and no complications. The patient and the injecting doctor completed a modified (adapted for penile enhancement) Global Aesthetic Improvement Scale (GAIS) to assess the results. The clinical GAIS score at six months was 2, and the patient GAIS score was 1, indicating an excellent clinical outcome and strong patient satisfaction. The CDS technique provides enhanced control, superior contouring and improved safety compared to traditional penile filler approaches. Further studies are recommended to assess long-term outcomes and broader clinical utility.