Acute mastitis is a common disease in breastfeeding women, mostly caused by Staphylococcus aureus (and in a few cases, Streptococcus) infection, which initially causes an increase in breast volume, local hardening, redness of the skin, pain, and in severe cases, systemic symptoms such as high fever and chills, and later the formation of abscesses. The treatment is mainly anti-infection treatment, at this time, breastfeeding should be stopped and milk should be sucked out. If an abscess has formed, surgery should be performed in time to cut and drain the abscess. For women who are breastfeeding, milk withdrawal medication is usually used to reduce milk secretion and to prevent complications due to breast fistula caused by ductal injury that may occur during surgery. The most important postoperative treatment besides the use of anti-infective drugs is the cleaning and changing of the wound after abscess excision, which is usually done every 1 to 2 days depending on the specific situation. Since the abscess excision surgery itself is a contamination type surgery, the wound does not need to be stitched and cannot be stitched. The time to heal varies depending on the condition, but is generally longer.