Breastfeeding weaning for medical reasons

Physiological changes during abrupt weaning

During weaning, the composition of milk changes dramatically, especially after abrupt weaning. Although the secretory capability of the breast reduces, the involuting mammary tissue remains partially functional for a long period (approximately 45 days). From days 1-45 the concentration of lactose and potassium decreases, while the concentration of sodium, fat, and total protein increases. In addition, milk becomes increasingly salty because of the increase in protein content (lactoferrin, immunoglobulin A, IgG and IgM, albumin, lactalbumin and casein).

Hormonal changes as a result of sudden weaning may also be apparent, especially during the newborn period, where higher levels of prolactin are present. 

General guidelines when weaning for medical reasons

• If weaning for medical reasons is suggested, access to support from a medical professional who is knowledgeable about lactation is recommended. The medical professional should be able to help determine whether other options are available (for example, whether an alternative maternal medication is available)
• Mothers should use manual or electric (i.e. breast pumps) methods of milk expression to relieve breast fullness until they feel comfortable – however, this should not be done to the extent that milk production is stimulated
• Other methods may help, including wearing a supportive, comfortable bra and being alert for the signs of plugged ducts or breast infection.
• Adequate emotional and social support may be needed for some mothers during weaning, especially if they are prone to depression
• Other guidelines for physiological weaning may also help