Old Age and the senior Chihuahua
Do not allow your dog to jump off furniture or out of a car. Elderly/senior chihuahuas are susceptible to bone fractures, so pick him up and place him gently on the ground.
Keep your chihuahua warm, if you live in a cold environment. Limit his time outdoors, and purchase a dog sweater for outdoor use. You can also purchase a heating pad designed for dog beds at your local pet supply store. Given their small size, chihuahuas are sensitive to the cold, and elderly chihuahuas may have trouble generating enough body heat to keep warm.
Keep your dog in a calm, stress-free environment. Do not allow small children or other pets to annoy him, and do not make any sudden changes to his environment. Make sure he has plenty of time during the day to sleep in a quiet place.
Feed your chihuahua a high-quality senior dog food on a regular schedule. Many dog-food manufacturers make special formulas for elderly dogs, which can help keep your chihuahua’s weight under control. Avoid making abrupt changes to his diet, which can cause stomach discomfort.
Be patient with your pet if he cannot do some of his normal activities. He may sleep more than usual and may not be willing to play as often. This is a normal part of the aging process.
Look for signs that he may be in pain, such as a loss of appetite, incontinence, irritability or changes in his daily habits. Elderly dogs should be regularly monitored for any changes in behavior or habits. If you notice any troubling signs, talk to your veterinarian.