Acute mastitis is an acute inflammation of the breast, commonly seen in first-time mothers who have been breastfeeding for about a month. There are 2 causes of acute mastitis: 1) nipple rupture mostly with pain while breastfeeding and nipple fissures; 2) bacterial invasion mostly with milk stagnation present, forming a nutritional base for bacteria. Clinically, there is localized redness and pain in the breast, with fever and chills in some cases; there is a fluctuating sensation to touch or ultrasound suggests the presence of a local abscess. Once the abscess is mature, it needs to be surgically incised as early as possible to drain out the pus and avoid further spreading of the abscess to the surrounding area and making the pus cavity even larger. When a certain pressure is reached, without surgical incision, the pus can ulcerate to the skin and discharge the pus by itself, then the wound surface is not neat and unsightly after healing. Traditionally, the incision of breast abscess is mostly for counter-oral drainage, that is, two incisions are made and drainage strips are used to run through them to achieve smooth drainage, or even multiple incisions are made to drain the abscess, and after healing, the skin of the breast is broken more, which affects the beauty. Nowadays, the abscess incision is fixed under breast ultrasound and drainage tubes are placed, with an incision length of about 0.5-1.0cm, and 2 tubes can be placed, one for drainage and one for flushing the abscess cavity, achieving the same effect as incision and drainage, with less trauma and faster recovery, making it easier for more patients with breast abscess to accept.