The ways you take care of your dog require adjustment as your pet ages. There are some basic things to know that will make the transition smooth.
Things to consider: Appetite changes, exercise, and sensitive skin.
Tasteless - Senior dogs may start to lose their sense of taste. When this happens, it may seem to you that they have lost their appetite and may even be getting sick. However, before running to the vet for more dog medicines your senior dog may or may not need, if your senior dog is losing considerable weight and/or seems to be losing his interest in eating, try these few suggestions first. Serve him his food at room temperature and give him very small portions several times throughout the day rather than the larger portions once or twice a day like he may be used to.
Keep Exercising - Like every other dog, senior dogs still need their exercise. Do not rely on the dog medicines your senior dog is taking to solve all his problems (though do not let him do without them either). Just make sure you complement his medicinal regimen by taking him out for a little healthy exercise each day. No matter how old your senior dog is, regular exercise is still imperative. If your dog is looking tired, then try going on shorter walks, but do them more frequently. Moreover, always make sure you use a leash. Some distractions may lead even senior dogs to forget themselves and you do not want your dog getting riled up even by the friendliest of canine playmates when he can hardly walk up and down the street without wincing. Keeping him on leash will ensure he gets the necessary moderation in her required exercise.
Kinder and Gentler - As dogs grow older, their skin becomes more sensitive. When dog grooming your senior dogs, start using a gentler touch than usual. Try switching from wire brushes to bristle brushes. Wash him with dog shampoos made specifically for sensitive skin or senior dogs.