Hilda, a stinging sensation in one or both breasts is most often a hormonal issue. If it's in one breast; and if your breast starts to seem infected (hot, red, swollen, painful, itchy), then you'd best see a doctor. If it's a vague stinging, you could try waiting a few weeks to see if it resolves itself. In the meantime, please read our post on breast pain; it'll give you helpful information about possible causes, and whether/when to see a doctor. Take care - PJH
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