Mastitis Symptoms & Causes

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What are the symptoms of mastitis?

Mastitis can appear suddenly. Symptoms include:

  • breast tenderness
  • skin redness, often in a wedge shape
  • swelling of the breast
  • general malaise
  • fever of 101 F or greater

What causes mastitis?

Mastitis can occur when bacteria from your skin or your baby's mouth enters a crack in your nipple and multiplies.

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