The position of breast implant placement is mainly decided according to the different physical conditions of the patients. The implant placement position can be subglandular, under the pectoralis major muscle, etc., which is generally independent of the incision position. 1. Subglandular insertion: that is, the implant position is located under the breast gland, which is the most used position at present. This position is mainly suitable for people who have sufficient existing breast tissue and the implant will not be much affected by the muscle. 2. Subpectoral insertion: The implant is located under the pectoralis major muscle. This position is more suitable for patients with less breast tissue. The advantage of this position is that it hides the position of the implant better. 3. Subfascial insertion: this method is to place the implant under the muscle connective tissue, and the advantage of this position is that the implant will not be displaced or rotated. The position of the breast implant in the axillary incision and the areola incision can be the same or different, the position of the implant is mainly based on the patient’s physical condition, the specific type of surgery or the position of the implant should be timely medical advice, consult the doctor.