When you feel that your breasts are uneven, have lumps or milk knots, the breast pump cannot treat different areas of the breast differently, and can specifically suck up the silted milk. However, the breast pump can continue to stimulate lactation regularly, so the milk cannot be discharged from the place where there is siltation, but the breast produces more milk, which may cause more serious siltation.
https://www.ncvibreastfeeding.com/