This study has quantitatively measured breast sensation following reduction mammaplasty using a vertical bipedicle technique. Breast sensation was quantitatively assessed by determining pressure and vibratory threshold values preoperatively in 20 subjects, and postoperatively in 15 patients. The nipple, areola and breast body were all independently assessed. Early results, less than one month postoperatively, revealed significant reductions in vibratory and pressure thresholds in the nipple and areola. Long term follow-up revealed that breast sensation returned to normal using this surgical technique.