The most common cause of breast pain with chills and fever during breastfeeding is acute mastitis, which is often seen in breastfeeding women, and can be treated with antibiotics at an early stage, or surgically in severe cases. Acute mastitis is a suppurative inflammation caused by a combination of bacterial infection and milk stasis, often accompanied by systemic symptoms of toxicity (chills and high fever), such as early breast has not yet formed an abscess, intravenous antibiotics (commonly used penicillin, etc.), and at the same time to keep the breast milk drainage, you can get a better result. If abscess has formed in the breast, abscess incision is needed, and the abscess cavity should be fully drained. Meanwhile, breast pain with chills and fever during breastfeeding should also be considered as colds, lung infections, skin infections and other diseases. There are many reasons for breast pain with chills and fever during breastfeeding, if the above symptoms occur, it is recommended to consult a regular hospital in a timely manner, after a clear diagnosis under the guidance of a physician to standardize the use of medication, while breastfeeding patients should also avoid milk stagnation, prevent nipple injury, keep the nipple clean to reduce the chances of infection. At the same time, they should strengthen exercise to improve their immunity.