cat with bladder infection?

The first answerer (lolit) is way off base!

No one really knows why cats get bladder infections any more than they know why people do.

Blockages are caused when the bladder produces crystals . When too many of the crystals are formed they plug up the urethra. It's more common in male cats because the urethra is very narrow where it goes through the penis.

No one knows for SURE why that happens either, but there's evidence pointing to a dry cat food diet. Cats that are fed a high quality canned food diet rarely have the crystal issues.

It concerns me that your cat has noticeable blood in his urine after being started on antibiotics.

Did your vet actually do a urinalysis or did he diagnose an infection without doing so?

If a urinalysis was not done you need to find another vet!!!

It it was done & your cat has been on the antibiotics longer than 48 hrs., he needs to be seen again by the original vet.

If he actually blocks it's a life or death emergency!

If your cat is now passing blood, I'd phone the surgery. It could well me a bladder infection. My cat gets cystitis regularly (she's had a urine analysis and x-ray which didn't find infection) and gets the same symptons as your cat. She has something called Cytease which helps her within 4-6 hours, so I would say if your cat has had the antibiotics and is now still passing blood, it;'s well worth the cost of a call - the receptionist can ask vet if you should go back today or hang in there.

The blood could mean it moved to his kidneys, I had a cat named Scamp who got a kidney infection. Before you rush him to the vet, there's special food sold for kidney health at walmart and other pet food vendors, it works wonders and the vet will sell you some that's most likely overpriced anyway. As for the infection itself, I had another cat and he would get bladder infections from certain types of litter, I had to use an all natural substrate called Feline Pine. It cleared him up so fast and he was able to use the box again. The ammonia from the other litters causes irritation in their urinary tract, imagine squatting as close as they do to the fumes of ammonia... it HURTS! Hope this helps and eases your mind.

cats are like human beings with almost the same anatomy and physiology . so if the cats are not well taking care of they could also acquire infections like human beings.