How can I tell if a puppy is healthy?

First, observe the puppy’s appearance. If its coat is dry, or it has localized hair loss, lots of dandruff, red or swollen skin, red and tearing eyes, a dry nose, bad breath, or a swollen anus, there may be a health problem.

Next, watch its energy. A healthy puppy is usually lively and active; if it becomes listless, loses appetite, stops moving, or reacts slowly, it may be unwell.

Finally, observe its elimination. Diarrhea, constipation, or frequent urination can also be signs of illness.