For many new mothers, breastfeeding is a boon. It’s healthy for them and for their babies. But some mothers have more milk than they can use, and others have less, or none.
In past generations, women who did not have enough breast milk for their babies or who chose not to nurse them turned to wet nurses. These days, women still share milk – some even sell it – and many use social media as a market or bartering place. Doctors say that kind of casual networking can be risky. They urge women to get their supply only from hospitals working with breast milk banks that pasteurize and test every drop.