Blocked milk duct symptoms: what to notice

Milk duct narrowing and nearby inflammation can make part of the breast feel dense, sore, or warmer than the surrounding tissue. The area may be wedge-shaped or feel like a small knot, and milk flow from that breast may seem slower. Symptoms often remain local rather than affecting the whole body. A visible white spot at a nipple opening can occur, but squeezing or picking it may injure the skin.

Continue breastfeeding or expressing milk according to your baby's usual needs and your comfort; repeatedly trying to empty the breast or adding extra pumping can worsen swelling. Use a cool compress between feeds, wear a supportive bra that does not press on the sore area, and rest when possible. Avoid forceful massage, deep pressure, and aggressive heat. If latch problems, nipple damage, or recurring soreness are present, a lactation professional can observe a feed and suggest adjustments.

Contact a healthcare professional promptly if you develop fever, chills, flu-like feelings, spreading redness, rapidly increasing pain, pus or bloody discharge, or a soft swelling that seems filled with fluid. These features can accompany mastitis or an abscess and need assessment. Arrange a review as well if the firm area persists, repeatedly returns in the same place, or does not improve with gentle self-care. Seek urgent help if you feel severely unwell, faint, confused, or unable to keep fluids down.

Ask whether your symptoms fit inflammation alone or whether an infection or fluid collection needs treatment. You can also ask a clinician to check persistent lumps and nipple changes, and discuss whether feeding position, pump fit, oversupply, or pressure from clothing could be contributing. Mention any medicines, allergies, recent breast procedures, and changes affecting only one breast.