There is no all-around relationship between breast cancer and the Mannix Ring, after the patient wears the Mannix Ring. The main help to adjust the body’s hormone level, narrowing the probability of semen and egg combination, wearing the Mannuelle ring is not likely to add the harm of breast cancer. Breast cancer is related to high estrogen, not much related to progesterone, and Mannuelle ring is to release progesterone. The Mannuelle ring mainly works on the uterine lining and has no effect on breast cancer. Breast cancer patients are not recommended to take birth control pills, menopausal women try to avoid the use of estrogen, maintain optimism and stable emotions, regular work and rest, ensure adequate sleep. Strengthen physical exercise, improve the body’s resistance, conduct regular breast self-examination, and master the correct breast examination method. During the treatment period, breast cancer patients need to regulate their diet, choose nutritious food for three meals a day, avoid eating spicy and stimulating food, patients usually need to pay attention to protect their breasts, try not to be squeezed, and usually eat more fruits and vegetables.