Jun 15, I need to get an x-ray next week on a foot. Does any one know if this is dangerous for my child. should I pump my milk and throw it out after the. Feb 18, It turns out all X-rays are safe while nursing and have no effect on your breast milk, according to Breastfeeding Support. As Pediatrician Natasha Burgert noted on BabyCenter X-ray radiation can kill off a few living cells in your breast milk, but your baby won’t be exposed to. Sep 7, Advice for mothers using X-Rays while breastfeeding. Includes possible effects on breastfed infants and lactation.