Women often experience breast pain at different times due to various factors. Because many women do not know enough about breast pain or even have misconceptions, they suspect they have breast cancer once they experience breast pain and are overly worried and anxious. In fact, most of the breast pain is caused by physiological or benign lesions, which can be effectively relieved by timely relaxation, diet adjustment or appropriate drug intervention. About 2/3 of women have breast pain or discomfort before menstruation, and the pain is relieved or disappears after menstruation, if the pain is short (such as not more than 1 week/month) or the pain does not affect normal life and work, it is called mild to moderate breast pain, which is a physiological phenomenon. This is a physiological phenomenon. It does not require medication and can be treated by keeping a cheerful and relaxed mood. Severe breast pain refers to the painful swelling and stabbing pain that women feel when their breasts are slightly shaken, bumped or moved, or even at rest, which affects their normal life, work and sleep. In addition to eating a light diet and avoiding spicy and stimulating foods, severe breast pain requires vitamin supplements or short-term use of traditional Chinese medicine or proprietary Chinese medicine to relieve symptoms and cut off the “vicious cycle of pain”. It should be noted that 1/3 of women’s pain is not related to the menstrual cycle, and in severe cases it lasts for the entire menstrual cycle and is further aggravated by mental stress and emotional stress, so relieving mental stress and stabilizing emotions are crucial to relieving pain and increasing the sensitivity of medication. 2.Breast swelling and pain during pregnancy/postpartum The swelling of the breast occurs 40 days after menopause, and in severe cases, there may be breast and nipple pain, which can last throughout pregnancy. This is due to the placenta and villi secretion of a large number of hormones, so that the breast enlargement, in preparation for breastfeeding, is a physiological phenomenon. As your breasts increase in size, it is important to change to a wide bra in time, avoid bunching your breasts, and keep your mood relaxed to relieve the pain. Three days after delivery, both breasts are full, painful and hard, mainly due to lymphatic retention, interstitial edema and poor ducts in the mammary glands. The pain can be relieved after the milk flows freely for 7 days after delivery. After the birth, breastfeeding as early as possible; hot compress before breastfeeding, and gentle massage, to promote the smooth flow of milk, reduce the accumulation of milk. The pain is often caused by non-specific inflammation of the rib cartilage below the breast, and this pain is often self-limiting. This pain is often self-limiting and can improve on its own, but may reappear after a while. If the pain is significant, topical creams can be applied to relieve the pain. When women have breast pain, sometimes it can radiate to the armpit, back of the shoulder, upper limbs, however, it should be noted that long-term repeated back of the shoulder, upper limbs of the pain is not relieved, may be related to cervical spondylosis, rather than caused by breast pain. 2, mastitis Mastitis is common in the first 1-2 months after childbirth, mainly due to milk stagnation accompanied by bacterial infection, manifested as hard nodules in the breast, high local skin temperature, tenderness. If an abscess is formed, the pain will increase and the patient may develop chills, high fever and other systemic symptoms. Therefore, pregnant women should clean their nipples before and after breastfeeding and unclog the milk ducts to prevent milk stagnation. Empty the stored milk with a breast pump. If the above symptoms occur, you should seek medical attention and take antibiotics and drain the pus. Breast cancer is the most worrying disease for female patients and it occurs mostly before menopause. The most common clinical manifestation of breast cancer is painless progressive enlargement of breast lumps. Although some breast cancers may be associated with breast pain, its characteristics are different from those caused by physiological or other benign breast diseases, and it is usually mild vague or dull pain with no obvious regularity, only episodic or paroxysmal, and some of them are persistent. Since the symptoms of early breast cancer are not typical, doctors suggest that even normal women without any discomfort must undergo mammography screening every 1-2 years and high-frequency ultrasound of the breast every 6 months to detect breast cancer at an early stage.