Plugged Ducts vs. Mastitis: Understanding the Difference and How to Find Relief
Breastfeeding Pain? Here’s How to Tell if It’s a Plugged Duct or Mastitis
Breastfeeding in the early weeks involves a learning curve—not just for babies, but for parents, too. One of the most common challenges is dealing with breast pain or swelling related to plugged ducts or mastitis. Although they can feel similar at first, they require slightly different approaches. Knowing the difference helps you act early and feel better faster.
At NEOwell, we support families through every stage of feeding. Here’s what you need to know.
What Is a Plugged (Clogged) Milk Duct?
A plugged duct occurs when milk flow slows or becomes blocked in one area of the breast. This is not an infection, but it can be uncomfortable.
Common Signs of a Plugged Duct
A small, firm, tender lump
Pain that’s focused in one spot
Mild redness in a small area
No fever, or only a very low fever
Relief after nursing or pumping
The baby may fuss on that side due to slower milk flow
How to Help a Plugged Duct
Breastfeed frequently, starting on the affected side
Use a gentle massage toward the nipple (avoid deep pressure)
Apply warmth briefly before feeding
Use cold compresses after feeds to reduce inflammation
Avoid tight bras or clothing
Hand express just enough for comfort—avoid over-pumping, which can worsen swelling
Early, gentle care is key—most plugged ducts improve within 24–48 hours.
What Is Mastitis?
Mastitis is inflammation of the breast, sometimes accompanied by infection. It typically appears more suddenly and makes you feel sick systemically, not just sore locally.
Common Signs of Mastitis
A painful, hot, red, swollen area
Sudden onset of symptoms
Fever over 101°F (38.5°C)
Flu-like symptoms: chills, exhaustion, body aches
Pain or burning when feeding
Temporary drop in milk supply on that side
How to Help Mastitis
Continue feeding or pumping—it is safe for the baby
Rest and hydrate
Use cold compresses (avoid aggressive heat)
Try gentle lymphatic drainage with light sweeping motions toward the armpit or collarbone.
Avoid restrictive bras or clothing
Consider ibuprofen if approved
Seek medical care if symptoms worsen or do not improve within 24 hours
You may need antibiotics if a bacterial infection is suspected
Mastitis can escalate quickly, so early action and rest are essential.
When to Call Your Provider
Contact your OB, midwife, or PCP if:
You develop a fever over 101°F
Symptoms worsen quickly
You feel flu-like for more than 24 hours
You see red streaking or pus
You have recurrent plugged ducts or mastitis
NEOwell can help you identify early signs and guide you on the next steps.
NEOwell Is Here to Support Your Breastfeeding Journey
Whether you're recovering postpartum, adjusting to life after a NICU stay, or navigating the early learning stages of breastfeeding, you don’t have to manage breast complications alone.
NEOwell offers:
In-home newborn and lactation support
Feeding assessments
Pumping guidance and flange fitting
Postpartum recovery support
NICU-to-home transition care