Ductal Lavage in Non-lactating Female Women With Mastitis

Inclusion Criteria: * Female, age between 18 and 65 years old. * Inform consent signed. * Clinical diagnosis of non-lactating mastitis, defined as mastitis occurred more than 1 year after the cessation of lactation. * Never receive any treatments after the cessation of lactation. * Good health, judged by clinicians, to receive ductal lavage. * Pathologically diagnosed as idiopathic granulomatous mastitis (IGM) or periductal mastitis (PD). Exclusion Criteria: * Pathological diagnosis of breast carcinoma. * Pregnant women. * Evidences suggest possible diagnosis of systemic lupus erythematosus(SLE), rheumatic disorders or other systematic auto-immune diseases. * Evidences suggest possible diagnosis of tuberculosis. * Imaging examinations indicates foreign objects retained in the breast * Evidences suggest possible diagnosis of fungus infection of the breast * Patients with inappropriate coagulation function, cardiac function, pulmonary function, liver and renal function, that clinicians judges as not suitable to participate in this study.