Breast cancer surgical incisions usually recover within one month. If the incision is slow to heal, you should consider whether there is an incision infection, excessive tension on the incision, or excessive activity. It is recommended to go to the hospital for treatment in time. 1. Incision infection: diabetic patients are prone to incision infection, and should actively control blood sugar, which is conducive to incision healing. Incision infection can also be caused by incision contamination, patients should pay attention to keep the incision dry and clean, and actively change the medicine. If you suspect that the incision infection should consult the doctor in time, standardized treatment. 2. Excessive tension of incision: rare. Since radical mastectomy for breast cancer requires removal of breast and surface skin tissues, if too much skin tissue is removed, excessive tension on the incision during suture will lead to non-healing of the incision or even cracking, and skin grafting should be considered when necessary. 3. Excessive activity: As the incision is located in the anterior chest wall, the upper limbs are often pulled when moving, resulting in incision non-healing or slow healing. Patients should avoid chest expansion and similar movements, avoid lifting heavy objects, and pay attention to rest, which is conducive to early healing. It is recommended that when the wound is not healed one month after breast cancer, it is recommended to go to the hospital in time, and standardize the treatment under the guidance of the doctor.