How to tell mastitis from a clog or engorgement when EP
Clogged duct: One firm lump, local tenderness, no fever. Often improves with frequent pumping on that side.
Engorgement: Both breasts full and heavy, usually after missed pumps. Improves when you empty, without flu-like illness.
Mastitis: Hot red area (often starting from a clog), fever, chills, body aches, feeling unwell. May worsen quickly if milk sits stagnant.
Exclusively pumping breast pain plus fever is mastitis until a clinician says otherwise. Start our clogged duct guide only if you have no systemic symptoms.
Seek urgent same-day care for high fever, rapid worsening, red streaking, suspected abscess (intense localized pain with swelling), or if you feel seriously ill.
Should you keep pumping with mastitis?
Generally yes. Emptying the breast helps recovery and is usually recommended alongside medical care. Stopping all pumps abruptly can worsen engorgement and make inflammation harder to clear.
Pump gently if full suction hurts. Hand express if needed. You are not trying to boost supply right now. You are keeping milk moving.
Should I keep pumping with mastitis is one of the top EP searches. The answer from major health bodies is usually continue removal, not stop cold turkey. Confirm your plan with your GP or midwife for your situation.
Ready to simplify your pumping schedule?
Track sessions and your freezer stash with Stash on iOS.
What to do in the first 24 hours
Contact your GP or out-of-hours service. Describe fever, breast symptoms, and that you exclusively pump.
Empty the affected breast frequently. Warm compress before sessions may help flow.
Rest, fluids, and pain relief only as advised by your provider. Do not take leftover antibiotics or follow forum dosage advice.
Track sessions so you know you are still removing milk. Stash on iOS logs pumps quickly between rest breaks.
Pumping at work or on a schedule when you feel awful
Tell your employer you need break coverage if possible. Short, gentle pumps beat skipping entirely.
Wearable pumps may help if you cannot leave a meeting, but prioritize emptying over convenience if you are febrile.
Store milk as usual if you are not on medication that affects feeding safety. Your clinician can confirm whether pumped milk is fine for baby during treatment.
What not to do
Do not stop all pumping suddenly without medical guidance. See weaning off pumping for why abrupt cessation risks engorgement.
Do not self-prescribe antibiotics or take someone else's prescription.
Do not aggressively massage a hot, inflamed breast. Gentle movement toward the nipple during pumping is enough until a professional assesses you.
Do not assume thrush or yeast when you have fever and redness. Itchy nipples without fever are a different track.
When to call your GP urgently
Same day: fever over 38°C (100.4°F), symptoms not improving after 12 to 24 hours of emptying, spreading redness, recurrent mastitis, immunocompromise, or you feel unable to care for yourself or baby.
NHS mastitis guidance emphasizes prompt treatment. Your GP decides whether you need antibiotics or other care.
