Only a picture would do it justice but not sure how to post it. My son is potty trained but on this particular day was fine and then just said mommy I'm peeing. That had never happened. It was first morning urine, he hadn't gone yet and said he didn't have to when I'd asked only a few minutes before. He didn't lose complete control and most of it went in the toilet. The bit of urine dried bright white like the undies were bleached, but it washed out. The urine in the toilet was very cloudy with lots of particulate present to my naked eye. Doctor has never seen anything like it, I brought the undies in and showed her. Freaking out a bit... Urinalysis came back negative. The lab also spun the sample and looked at it under the scope and it came back "many amorphous crystals present" as the only result. They sent it out for culture and was negative for any infection. All good things except for leaving me with more questions than answers... Help please!