How Can You Tell How Old A Dog Is?
The most reliable way to tell how old a dog is by looking at their teeth. Puppies will start growing baby teeth when they are about 4 weeks old and will have a full set when they are 8 weeks old. At about 14 weeks old, their needle-like temporary teeth would start getting replaced by their permanent teeth. These permanent teeth would be complete when they are 7 months old. They will be clean and white for the entire 1st year but start to build up plaque starting from the back rows for the next two years. By age 3, the tips of the teeth would show pronounced dullness and the plaque build-up would start showing on the front rows. Even more wear and tartar could be seen after year 5.
Aside from teeth, there are also other ways to check how old a dog is. Fur coloring could indicate aging as dogs fur start to gray when they're 7 years old. Starting age 6, dogs' eyes may start looking cloudy and sometimes form some discharge. Other aging indicators also include hearing loss, lowered energy and activity, as well as a decrease in muscle mass.