What is the main contraindication for breastfeeding?

The primary contraindication for breastfeeding is when the mother has active tuberculosis or is undergoing chemotherapy. In such situations, the health risks to the infant may outweigh the benefits of breastfeeding. Active tuberculosis can be contagious and may pose a significant risk of transmission through close contact. Therefore, mothers with this condition are often advised to avoid breastfeeding until they are no longer contagious and have completed adequate treatment.

Chemotherapy also presents a unique challenge, as many cancer treatments can result in substances that may pass into the breast milk, potentially harming the infant or affecting their development. While some medications are deemed safe for use during lactation, those involved in chemotherapy typically require careful evaluation of risks vs. benefits.

In contrast, it is generally acceptable for mothers who are allergic to dairy products to breastfeed, as this allergy does not affect the safety of the milk produced. Similarly, while certain antidepressants may have implications for breastfeeding, many are considered safe and can be managed effectively under a healthcare provider's guidance. Autoimmune disorders also do not automatically contraindicate breastfeeding, as many women with such conditions can successfully and safely breastfeed with proper medical management.