I have a 12 year old doggie (chihuahua)and she is peeing in the mddle of the night. She wakes me up to go outside which is great... but is there anything I can do to help her not wake me up to pee ? Remove water at night?

Unless you are watching the dog 24/7 I don't like the idea of not allowing it to have water when it may want or need it. How will you know when it last had any?

The only sensible way I can see to avoid being awakened at night would be to install a doggy door so it can go out whenever it pleases.

I don't think it would hurt for you to take the water up a few hours before bedtime.

Have you taken her for a recent check-up? Since she is twelve yrs old she could be having bladder problems, or something else medically wrong with her. Unless she is dehydrated for some reason, you should be making sure she drinks enough during the day, and then putting her water up a few hrs before bedtime, and make sure you take her out right before bed also. If there is nothing medically wrong and you take her water away well ahead of time, you might want to get some pee pads and put them down where she sleeps.