How often plasmacytoid mastitis recurs varies from person to person and is related to the patient’s specific condition and treatment. Plasmacytoid mastitis, also known as acantholytic mastitis and ductal dilatation, is characterized by painful breast swelling and nipple discharge, with or without nipple indentation; in severe cases, abscesses may form, which can easily lead to prolonged disease. The recurrence of plasmacytic mastitis is one of the characteristics of the disease, as the inflammation tends to be diffusely distributed along the ducts of the breast, making it difficult to remove the lesion completely when it is extensive, and it is easy to form fistulas that do not heal properly after surgery, leading to recurrent attacks. However, how often it recurs varies from person to person, and it can recur within 3 months to 1 year. Therefore, patients need to control the inflammation early, and if necessary, early surgery can reduce the recurrence rate. In addition, plasmacytosis is also associated with nipple invagination, and patients need to have surgery to correct the nipple if necessary. Patients with plasmacytoid mastitis need early standardized treatment after diagnosis, especially in the acute and subacute phase (first 3 weeks of the disease) to achieve complete healing and avoid abscess formation; the chronic phase can last from 1 to 10 years and can be combined with TCM treatment.