I've never heard this circ reason before
(link)Sterile urine samples
When you see a young baby that has a very high fever, one thing you immediately think of is a UTI. To rule it out, you need a sterile urine sample. A circumcised penis gives sterile urine naturally, but because of bacteria under the foreskin, an uncircumcised penis doesn’t. So, for a proper workup, you need to tranquilize the baby and pass a tube in, and it becomes an invasive procedure just to get a sample.
Is that true?