The mean diameter of nipple-areolar complex(NAC) is 24.3 mm(range 21-29mm) in young Korean men, and patients usually, expect the decrease of NAC after gynecomastia correction. Therefore, the, authors studied the rate of decrease of NAC after ultrasound-assisted liposuction and fibroglandular excision via periareolar approach. Series of 121 cases(242 NAC) were reviewed from May to September 2007 with mean follow-up of 5 months. Inclusion criteria were the followings; 1) NAC diameter > 30 mm, 2) Bilateral cases within 3 mm difference between right and left NACs, and 3) Patients who agreed to take photographs longer than at least 3 month after operation. The decreased NAC ranged from 5.1% to 44.7%(mean 23.8%). The patient's satisfaction was high, and most of them were pleased with the decreased NAC diameter. Based on these results, we can provide the more informations about gynecomastia to patients.