Monday, 11 May 2026

Lactatn related anaphlxs

 The article “A rare case of lactation-associated anaphylaxis” by James P. Senter and Kris G. McGrath describes an exceptionally uncommon condition in which breastfeeding or milk let-down triggers episodes of anaphylaxis in the postpartum period.

Key points from the medical literature on lactation anaphylaxis include:

  • Symptoms can include:
    • urticaria (hives)
    • itching
    • wheezing or shortness of breath
    • throat tightness
    • hypotension
    • gastrointestinal symptoms
  • Reactions typically occur shortly after breastfeeding or milk expression.
  • The condition is believed to be related to rapid postpartum hormonal changes leading to mast-cell degranulation and histamine release rather than a classic food allergy.  
  • Diagnosis is clinical and often delayed because the condition is extremely rare.
  • Elevated serum tryptase during episodes may help confirm true anaphylaxis.  
  • Management may include:
    • epinephrine for acute episodes
    • antihistamines
    • corticosteroids
    • avoidance or suppression of lactation in severe recurrent cases (sometimes with bromocriptine).  

The syndrome itself has only been reported in a very small number of cases worldwide.  


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