Yep thiat is what it was a UTI. This started yesterday and fortunately this morning on my way in from walking the dog I saw Bille squating in the box and pass some blood. I called the vet right away and took her in. This will be a real pickle trying to get antibiotics in this one. She seems ok, glad I caught it in time. Thanx allarcoone said:I had the same thing happen to me. Red spots in the litter box. My cat Asuka also peed on some clothes on the floor. I took her to the vet and it was a urinary tract infection. I would watch to see if one of the cats is going to the box more frequently than the others and take that one to the vet as soon as possible. Good luck!