system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
An otherwise healthy 10-day-old boy is brought to the physician by his parents because of progressively enlarging breasts bilaterally for the last 4 days. The parents report that they have sometimes noticed a discharge of small quantities of a white liquid from the left breast since yesterday. During pregnancy, the mother was diagnosed with hypothyroidism and was treated with L-thyroxine. The patient's maternal grandmother died of breast cancer. The patient currently weighs 3100-g (6.8-lb) and is 51 cm (20 in) in length. Vital signs are within normal limits. Examination shows symmetrically enlarged, nontender breasts, with bilaterally inverted nipples. The remainder of the examination shows no abnormalities. Which of the following is the most appropriate next step in the management of this patient?
assistant
Reassurance