History, physical and laboratory findings, and clinical outcomes of lactating women treated with antibiotics for chronic breast and/or nipple pain.

This chart review study describes the history, physical and laboratory findings, and clinical outcomes in patients who presented to a lactation specialist between 1997 and 2002 and were treated with antibiotics for their chronic breast and/or nipple pain. A total of 69 charts were reviewed. Five were excluded because of loss of follow-up. Eighty-two percent of patients described postpartum breast tenderness, 74% had nipple sores postpartum, and 79% were tender on physical examination. Nipple lesions were present among 73% of the women. Breast milk or nipple cultures were performed for 60 of 64 patients and were positive for pathogenic bacteria among 50% of the patients cultured. The average duration of antibiotic treatment was 5.7 weeks, and 94% of the women had pain resolution. Symptoms of deep breast aching, breast tenderness on palpation, and nipple lesions may be suggestive of a bacterial lactiferous duct infection. Treatment with antibiotics for 4 to 6 weeks may be appropriate.