One Step Pet Urine Testing Strips, 5 x 10 Parameter Urinalysis Test Strips, Urine pH Test Strips for Dogs, Cats, Accurate Testing for UTI, Bladder & More, Pet Glucose Monitoring Kit

Male cats can get blocked with a UTI, and if you are seeing that much blood it's a bad sign. Normally they do have other symptoms with UTI so I'd lean more towards a kidney issue, which can go from 0 to 100 overnight (my cat was just hospitalized for a stone and almost died...). I would get urine test strips ASAP and test for blood (I use these https://a.co/d/0iLKdrZI) ; if there's a lot of blood you either need to get him into a vet or surrender him, if he gets blocked it will extremely painful 🙁 If he stops eating, drinking, or acts lethargic same thing.