Infant bloody nipple discharge: diagnostic approach in primary healthcare

Mariana Pinto Dos Reis1, Daniela Bento2, Mariana Azevedo2

  • 1Pediatrics, ULS de Santo António, Porto, Portugal marianareis2004@hotmail.com.

BMJ Case Reports
|July 8, 2025
PubMed

This case details a female infant who presented with unilateral bloody nipple discharge during a primary healthcare visit, a rare but typically benign condition. The infant, exclusively breastfed and healthy, showed no signs of trauma or infection. A small, mobile nodule was found beneath the affected nipple. Investigations conducted within primary healthcare, including blood tests and a breast ultrasound, confirmed benign findings with no signs of malignancy. The case was managed entirely within primary healthcare, and the symptoms resolved spontaneously over a 2-month follow-up. This case underscores the importance of healthcare professionals being familiar with such presentations to confidently adopt a conservative management approach. This reduces unnecessary interventions and alleviates parental anxiety. The findings align with existing literature, emphasising that such cases are usually benign and self-limiting, reinforcing the value of a cautious, informed approach.

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