Why is my cat urinating on furniture?

my cat started urinating on on bed 5 days in a row. I shut the door to keep her out. Now she is peeing on the couch what is wrong

She's definately stressing out. Are there any other cats in the house??? I had a cat that lost her sight and pee'd on the bed and the couch, Get her to the vets for a check up first. Seems like she is losing her way. My cat lost her sight and we didn't even realise, she was able to get around the house ok. Definately to the vets first.

Think back to the day before your cat started acting up. What happened on that day. In most cases, there is a direct cause for the cat to act this way. For my wife and myself, we were about to spend some 'mommy and daddy' time and we wanted the cat out of the bedroom. She sat outside the door crying the whole time. Once she got back in the beed room she jumped up on the bed and peed on my wife's pillow. Then hid under my side of the bed.

The only things we could come up with was:
It was my wife that put her out of the bedroom.
We had used my wife's side of the bed for our tryst
For the next few days after that, the cat would hiss at my wife
The cat wouldn't leave me alone. Always on my lap or near me.

In simple terms the cat was jealous. It took a bit of doing, but my wife finally made it clear who the alpha female was in the house. The cat is a little bit more tolerant
but still tests the authority of my wife.

marking the spot.

thats what your cat is doing.

I've read somewhere that if you don't make sure to keep a cat's litterbox clean, they wont want to use it. You see for them, it's nicer to pee on the bed, or the couch, or even the carpet, because it will be cleaned up automatically. Why would they want to use the same messy litterbox? Even cats start to hate the smell of their litterbox after a while! Just try to keep things clean. I'm sorry if this didn't help you much, it's just something I've read about.

The above replies are all valid but iI think you should get your cat to the vet and get it's kidneys checked using a urine sample.

Cats can suffer from polycystic kidney disease (PKD) which can cause unusual urination problems but the symptoms do not maifest until 80% kidney function is lost by which time it may be too late for the cat. I hope it's not this, obviously and go along with the litter tray / jealousy theory myself but you can never be too careful.

You need to wash all of the bedding and couch in a biological solution (or dump the furniture) and us a product called Urine Off to stop a re-occurance.

my cat was doing that and we found out she had a kidney infection after it got treated she stopped doing that

Cats will do odd behavior trying to let you know they are sick. My Vet told me (when my cat walked up and peed right in front of me on the carpet) that one cat jumped up on her owners car when she was trying to pull out of the drive way and peed on the hood. All unrinary tract infections.