The purpose of this article is to determine whether or not the transverse rectus abdominis musculocutaneous (TRAM) flap procedure is a practical operation for immediate breast reconstruction. Our series reports 128 consecutive patients who underwent immediate breast reconstruction with the TRAM flap from 1985 to 1990. Of these patients, 86 underwent conventional TRAM, while 40 underwent free TRAM breast reconstruction. Two-thirds of the patients underwent bilateral breast reconstruction. Comparison within this series of the free TRAM versus the conventional TRAM flap revealed improved statistics with regard to the free TRAM flap in a shorter hospitalization time and a decreased incidence of fat necrosis. There is no evidence to date that there is an increased chance of local recurrence with immediate breast reconstruction in this series, and chemotherapy was delayed in a single patient because of healing problems after immediate reconstruction. Operative times and the complication rate seem to be improving as compared with other series previously reported. The TRAM procedure, particularly the free TRAM procedure, is a primary choice for immediate breast reconstruction after mastectomy.