Acute mastitis is the most common breast disease in women during breastfeeding. Acute mastitis is caused by two factors: milk stasis and bacterial invasion, mainly Staphylococcus aureus. The main cause of acute mastitis is milk stagnation, which is the first symptom to appear, so treatment should start with eliminating milk stagnation. Some scholars advocate that after acute mastitis, breastfeeding should be stopped if the situation permits to prevent the spread of infection, but this not only interferes with infant feeding, but also provides an opportunity to increase milk stasis, so it should not be considered as a routine measure, but only when the infection is severe or when the abscess is drained and a milk fistula develops. In our treatment experience, the cessation of breastfeeding starts when the mastitis forms an abscess that needs to be drained by incision, and ends when the wound is not connected to the milk duct after dressing changes. Continuing breastfeeding when the wound is almost healed will prevent further accumulation of milk in other areas. This ensures normal breastfeeding for the baby and prevents breast disease in the mother.