The effects of total mastectomy are mainly in two aspects, one is the psychological effects and the other is the physical effects. 1. Psychological impact: total mastectomy will change the body image and loss of breastfeeding function. The mammary gland is the sex organ of women, which can show the unique beauty of women. After total mastectomy, it may cause low self-esteem because of the change of the body and the lack of function, which may make the patient feel incomplete and unable to face up to the situation. 2. Physical effects: some complications may occur after total mastectomy, such as local skin pulling, tightness, or incomplete healing of the incision after excision. Another is the effect on body balance, especially for patients with one side excision alone, the breast on the preserved side is plump and weight-bearing, which may cause lateral spinal distortion.