Breastfeeding women with an axillary temperature above 38.5 degrees Celsius should not breastfeed their children. A breastfeeding woman with an axillary temperature over 38.5 degrees Celsius may have a viral or bacterial infection or other illness that may cause her temperature to exceed 38.5 degrees Celsius. In this case, we should first examine the cause of the axillary temperature over 38.5 degrees Celsius in lactating women, such as routine blood tests, ultrasound examination of the breasts, routine blood tests, and because lactating women should pay special attention to the increase in body temperature due to acute mastitis, we should carefully touch the breast area for lumps, pain, and changes in the color of the breast skin. Of course, other diseases also need further examination, such as lung infection should be considered for chest X-ray, tonsillitis should be considered for throat examination, gallstone disease should be considered for abdominal ultrasound examination, rheumatoid rheumatoid disease caused by rheumatoid factor, anti-o and other examinations, liver disease should be considered for liver function and other examinations. If the patient’s body temperature does not exceed 38 degrees Celsius and other organic diseases are ruled out, you can consider continuing to breastfeed your child, but you should get enough rest, drink more water, and promptly check whether your body temperature is elevated and other abnormalities.