Diseases that affect breast-feeding

Most women with chronic illnesses or infectious diseases can breast-feed.

  • Women with diabetes usually can breast-feed but may need to follow a special diet. They may be able to lower their insulin doses while breast-feeding because their blood glucose is being used for milk production.
  • Women with cystic fibrosis or phenylketonuria (PKU) must have their milk and their infant's health monitored when breast-feeding.
  • In most cases, breast-feeding is possible when the mother has hepatitis A, chronic hepatitis B or hepatitis C, or cytomegalovirus (CMV).

However, other diseases may make breast milk unsafe for the baby. A woman should not breast-feed if she:

  • Is infected with the human immunodeficiency virus (HIV) because she can pass the virus to her baby in her milk.1
  • Has active tuberculosis or some viral infections (such as active, acute hepatitis).
  • Has sores on her breast caused by infections (such as herpes, syphilis, or chicken pox) until the illness has been resolved or successfully treated.

A rare hormonal disorder called Sheehan's syndrome makes a woman unable to produce milk or to produce enough milk to feed her baby. Sheehan's syndrome results from severe bleeding (hemorrhaging) immediately after giving birth.



Author: Kathe Gallagher, MSW
Carrie Henley
Last Updated: June 28, 2007
Medical Review: Kathleen Romito, MD - Family Medicine
Joy Melnikow, MD, MPH - Family Medicine
Andrew Swan, MD, CCFP, FCFP - Family Medicine

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