IBCLC Practice Exam 2026 – All-in-One Guide to Excelling in Your Lactation Consultant Certification!

Breastfeeding or feeding expressed breast milk is contraindicated when the mother is using illicit drugs. Illicit drugs can transfer to the infant through breast milk, potentially causing harm to the baby. These substances can lead to a range of complications, including developmental issues, withdrawal symptoms, and, in severe cases, life-threatening situations for the newborn.

While other factors such as a mother's cold, the infant's mild allergies, or lack of previous breastfeeding experience may present challenges or require additional support, they do not generally constitute a direct health risk that necessitates the cessation of breastfeeding. For instance, breastfeeding mothers with colds are typically advised to continue nursing, as most common colds are not transmitted through breast milk and are generally safe for the baby. Similarly, mild allergies in the infant can often be managed with guidance and do not require stopping breastfeeding. A mother's lack of previous experience in breastfeeding may call for additional support and education but does not inherently pose a risk to the infant's health.