My dog is a male, has been fixed and is about 11 years old. He usually do not pee in the house, but lately he has been very frequently. I don't know if he is just being bad or is having trouble because of his age.
This could be urinary tract disease (ie. infection), metabolic disease( ie. kidney disease, diabetes) or a behavioral problem. I recommend a visit to the vet for a work-up. vetcare