Mastitis in Breastfeeding: Causes, Risk Factors, and Evidence-Based Prevention Strategies

Breastfeeding mothers are more susceptible to mastitis (breast infection) due to:

Contributing Factors

  • Anatomy and Milk Flow: Lactation increases blood flow and milk production, creating a warm, moist environment favoring bacterial growth. Milk duct blockage leads to milk stasis and increased pressure, facilitating bacterial entry.
  • Cracked/Sore Nipples: Improper latch or frequent nursing can cause nipple cracks, serving as bacterial entry points.
  • Impaired Immune Function: Lactation temporarily suppresses immunity as resources focus on milk production.
  • Engorgement: Excessive fullness from milk accumulation increases infection risk.
  • Mastitis-Promoting Bacteria: Staphylococcus aureus and Streptococcus species (on skin or infant's mouth) enter through cracks.
  • Risk Factors: Diabetes, fatigue, weakened immune system.

Prevention and Management

  • Proper breastfeeding technique
  • Breast hygiene
  • Avoid excessive engorgement
  • Early symptom recognition and prompt treatment

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