Postmenopausal breast cancer patients can usually have sex two years after surgery. Postmenopausal breast cancer patients who have had surgery for two years and who are relatively stable with no uncomfortable symptoms can usually have sex. However, it is important to note that sex life must be appropriate and not overly fatiguing. Sexual life can help enhance the couple’s relationship and relieve the psychological pressure of breast cancer patients, which has certain positive effects. However, the frequency of sexual life should be closely related to the patient’s physical fitness, age and degree of recovery, so it is recommended to consult a healthcare professional. Secondly, it is still necessary to keep vigilant mentality for the disease, go to the hospital for regular review, and once abnormalities are found, treat them actively. Postmenopausal breast cancer patients can have sex appropriately two years after surgery, but they still need to take good care of their lives, especially in their diet, and try to eat less food with high hormone levels. If there is any discomfort, consult a doctor in time and follow the doctor’s advice.