How to Treat Chronic Ductal Mastitis

Chronic ductal mastitis—also known as periductal mastitis or mammary duct ectasia—is a benign, inflammatory condition affecting the subareolar breast ducts. It typically occurs in women aged 35 to 50, though it may also affect younger individuals or, rarely, men. Unlike infectious mastitis, it is not caused by acute bacterial infection but rather by ductal dilation, periductal inflammation, and often associated with smoking, nipple inversion, or immune-mediated processes.

Management is primarily conservative and tailored to symptom severity. First-line therapy includes cessation of smoking—strongly associated with disease onset and recurrence—as well as warm compresses and nonsteroidal anti-inflammatory drugs (NSAIDs) for pain and inflammation control. Antibiotics are reserved for cases with clear signs of secondary bacterial infection, such as purulent discharge, fluctuant abscess formation, or systemic symptoms like fever; in those instances, culture-guided narrow-spectrum agents (e.g., dicloxacillin or clindamycin) are preferred over broad-spectrum regimens.

For persistent or recurrent disease—particularly when associated with chronic sinus tracts, fistulas, or refractory abscesses—surgical intervention may be indicated. Options include targeted excision of affected ducts (duct excision), drainage of abscesses, or, in complex cases, central duct excision with preservation of surrounding tissue. Recent evidence supports minimally invasive approaches, such as ultrasound-guided aspiration or vacuum-assisted biopsy, for selected patients with localized ductal pathology.

Long-term follow-up is essential, as recurrence rates range from 15% to 30%, especially among smokers or those with untreated underlying ductal anomalies. Patients should undergo clinical breast examination every 3–6 months during active disease and be counseled on distinguishing benign ductal inflammation from concerning features—including unilateral bloody nipple discharge, skin changes resembling peau d’orange, or palpable irregular masses—which warrant prompt diagnostic imaging and possible biopsy to exclude malignancy.