I can't believe all of these answers scolding you for caging your dog. Why do they assume you are caging your dog as a form of neglect. Hello people, are you supposed to quit your job if you own a dog? Maybe the question is that she/he has a puppy and the puppy pees in the cage when she/he is to work. Is it possible all that answered live off the system and stay home so the dogs are free all day and evening! Ha GET A JOB!!
Are you sure that she is peeing? Do you have a bowl of water in the cage? If so, she may be spilling just the water. How much time is the pup spending in the cage, it isn't healthy for her to be in there all the time, and if she is spending a lot of time in there, then it could be stress that is making her do this. Hope this helps, good luck.
How old is your dog. If it is just a puppy then take it outside before you put it into the cage. The cage may also be too big for the dog. Most dogs will not pee in the cage if it feels like their bed.
Are you sure it's pee? If it is, this is what I would do: Make sure her crate isn't too big for her. She should be able to stand up completely and turn around easily, but it shouldn't be any bigger than that. Dogs don't usually like laying in their own pee, so it could either be from stress or her crate being to big. Also, make sure she likes her crate. Put some treats in it and make sure it's comfortable with padding so that going in her crate is a good thing. If she is in there a lot, the peeing could be a cause of stress.
Take your dog outside to pee in an open field.
Stop putting her in a cage. It's pretty simple. No cage no peeing in the cage. For example let's put you on a plane and tell you after we have taken off that you can not go to the bathroom the whole trip. but you have to go, what would you do? Doh! Your dog probably knows exactly what you are doing and anticipates going into the cage and is not able to pee when you want it to. You have basically programmed the dog to do this. Why do you think they have to clean the cages at the pet stores/kennels for?
I agree with nomad1. I am a dog lover and never has any of my animals been caged. Nor have I followed the stupid vets feeding practices and none of my dogs have been overweight. Dogs can only be expected to hold it in for so long. Its worse for young dogs. My dogs are free to rome the house when I'm not home. I let them out in the morning, they do their business and when I get home they run around unleashed until it gets dark. If one of them needs to go out they scratch,whine or bark at the door. Owning a dog means taking the time to train. My dogs get reated the same as my kids bexause they are my kids. Don't mean to sound harsh but people who cage their animals shouldn't have them. They are not things you put away until you feel like playing with them. Could be separation anxiety which again means training. Have there been times when my dogs peed on the floor,yes... But I didn't get angry as it was my fault because I didn't let them out in time for whatever the delay was getting home.I am sure they held it in as long as they could. Have someone come over and let them out at lunch time. Its not the dogs fault. Animals typically don't defecate were they sleep unless there is no choice.