Fig. 2

Nipple and breast skin sensation test. The sensation assessment was first evaluated by finger touching the healthy side to show the feeling of touch sensation of a normal breast. Then perform the same touch on the operative side of the nipple and skin. Patients were asked to answer score of sensation when feeling the touch of the nipple or area of skin during an examination. Five area measurement points are as follows: the nipple, upper breast skin, medial breast skin, inferior breast skin, and lateral breast skin were tested, and the nipple or breast skin sensation were divided into four degrees (0–3): grade 0 (no sensation at all), grade I (numbness sensation), grade II (fairly sensate), and grade III (normal sensate)