Our 4 day old son has blood in his urine. it's getting worse. should we take him to the hospital?

Urate crystals?: Many new babies have a rusty stain in the diaper that is easily mistaken for blood. It is usually urate crystals - a common finding that will go away. But always stay on the safe side with new babies. Call your pediatrician or family doctor and check this out with them. You may want to talk to the consulting nurse at your childrens hospital. Good luck with your new human! lgromko md.