Many women have the misconception that having breast cancer is the same as losing one side of the breast. In fact, in the past 30 years, the surgical treatment for early-stage breast cancer has gradually changed from the traditional total mastectomy to breast-conserving surgery. In the last 5 to 10 years, neoadjuvant treatment has been commonly used, which means that when breast cancer is detected, instead of surgery immediately, the tumor is first treated with medication to make it smaller. This makes the surgery on the breast smaller and also reduces the after-effects. Nowadays, doctors are very good at hiding scars. After breast cancer surgery, there are many ways to avoid changing breast shape as well as leaving scars. There are many ways to avoid changing the breast shape and leaving scars after breast cancer surgery. Depending on the location and size of the tumor, you can choose to remove the tumor from the armpit, or make an incision from the areola or the lower edge of the breast. Reducing wound tension” within 2 weeks of incision and moisturizing the wound after 2 weeks As long as the dermis is touched, scars will inevitably be produced, so follow-up wound care is very important. In order to take into account the aesthetic appearance of the wound, absorbable thread can be used to hide the sutures under the wound, and cosmetic tape can be applied after the incision. The skin has a texture and when the skin is cut by an external force, there will be an outward tension, and sutures and cosmetic tape are used to reduce the tension of the wound. The time to apply the cosmetic tape is about 2 weeks after the incision, when the important principle is to reduce the wound tension and promote a good wound recovery. The better the wound heals, the less severe the scarring will be. However, this does not mean that an elevated scar will not form afterwards, so the focus of care after 2 weeks will be on moisturizing the wound. The reason why scars are formed is that during the wound recovery process, although the epidermis has been created, the stratum corneum has not yet matured, causing the skin to lose moisture abnormally. However, under the condition of dehydration, the collagen will be abnormally overproliferated and misaligned, which will result in scars. The cosmetic tape does not have the effect of preventing transcutaneous water dissipation.