Bloody Nipple Discharge (BND) is an uncommon finding in infants and is a cause of anxiety for the parents since it can be associated with breast carcinoma in adults. Mammary duct ectasia is the most common cause. This report describes a 9-month old boy who presented with unilateral BND. Diagnosis of benign duct ectasia was made on ultrasound. The patient was followed and the condition resolved spontaneously over the next two months.