The Science: Why Cat Pee Is So Hard To Clean Like all urine, cat urine is mainly made up of urea, urochrome, and uric acid.

Cats with UTIs try to urinate frequently, may pass only small amounts of urine, may strain to urinate, and may cry or whine ...

considering urine marking is more common in cats of this sex. However, I have had my fair share of female cats that were peeing outside of their boxes for a variety of reasons. Regardless of which ...