Female dog urinary tract infection is a common problem for your dog. Bacteria takes hold when the body is unable to keep the infection from taking hold. This could be due to low levels of water intake, unsanitary conditions near the area where the urine leaves the body, or a weakened immune system. Treatment includes antibiotics for infection. There are several things you can do at home as well such as giving your dog some cranberry juice, homeopathic remedies and providing more fresh water to drink.