My baby has something moving in her breast its only in the right breast what is that

A. If your baby has something moving or a noticeable lump in her right breast, it could be due to several benign reasons, such as a swollen gland or an accumulation of breast tissue, which can occur in infants due to hormonal influences from the mother during pregnancy or breastfeeding. In some cases, it might be a sign of a cyst or other benign growth. However, it’s important to consult a pediatrician for a proper evaluation to rule out any serious conditions and to ensure your baby's health and well-being.