The anterior segment of latex tube (10cm) with a length of 30cm was cut in half and placed on the ipsilateral and contralateral sides of the flap, and the ipsilateral head was shortened by 3cm. The rear section of the tube is led out from another puncture hole in the lateral chest wall (connected with a negative pressure suction device after returning to the ward).

8, the whole breast with a thick layer of dressing pressure bandage.