One month after the mastectomy incision is not healed generally can be appropriate coitus, but need to pay attention to avoid the upper limbs, chest strenuous activities, so as not to touch the wound, not conducive to healing. One month after mastectomy, as long as the pain is reduced, there is no menstrual period and vaginal diseases, can be appropriate coitus, sex will not directly affect the healing of the wound. And reasonable and moderate sex life can help relieve the patient’s pressure and enhance the couple’s relationship. However, intercourse should not be too frequent, and during intercourse, attention should be paid to avoid strenuous activities of the upper limbs and chest, so as to avoid bleeding from the wound again, which may cause pain or infection and other symptoms. After mastectomy, patients need to pay attention to balanced nutrition, prevent wound infection, the emergence of uncomfortable symptoms, need to go to the hospital in a timely manner, identify the cause of the disease and standardized treatment.