19/11/2025
Brick dust/urate crystals
Very normal in the first few days of a babies life, and just as a result of passing a low volume of urine in the early days.
As long as all else is well; baby pooing, feeding comfy, baby actively drinking etc they’re not usually a concern, and not a sign you need to offer formula or supplements, just make sure you continue to offer the breast frequently to give lots of opportunities for feeding.
Don’t forget the norm is that feed volumes start off low in the first few days, but in rare rapidly as your milk ‘comes in’.
If you see these in your baby’s nappy after day 3/4 or so, they can be more of a concern, and a sign that perhaps a feeding assessment is needed.
Hope this helps!