Why is my puppy warm, has a runny nose, and acting lethargic?

It depends. Is he still nursing? Gaining weight like the rest of his litter mates? Showing interest in what's going on? Was he examined after birth to ensure that he doesn't have a cleft palate? Was his mother vaccinated against distemper? These are all questions your have to ask yourself. A little bit of clear nasal discharge in an otherwise normal puppy probably isn't cause for concern, but if any other concerning signs are present - coughing, lethargy, not nursing and/or gaining weight and ESPECIALLY if distemper is a concern - then see a vet about this.

It could be. As long as she continues to eat well and behave otherwise normally, I would keep an eye on her for a day or two. If she continues to be lethargic and congested beyond the next couple of days or her symptoms worsen, I would get her seen by your vet as soon as possible. If she is unvaccinated yet, there is the possibility that she was exposed to distemper or another virus.

It is probably nothing to worry about. It is normal for Missy to have a warm, wet nose (dry and cool is also normal). I would monitor for coughing, lethargy, and loss of appetite but would not change anything at this time.

Poor Monty! This is definitely concerning as nasal discharge, especially when it is not clear, can be an indication of an infection. Puppies tend to be at a higher risk. Usually these infections affect the upper respiratory tract (nasal passages and trachea) but can spread to the lungs and cause serious damage. Monty needs to be seen by a vet as soon as possible to determine the cause and start the appropriate treatment.

The nose of a dog is not used as an indication of illness. A dog's nose can change from cold and wet to warm and dry just by laying in the sun or sitting near a heat source. He may still be sleepy from his nap, and given that he just started this behavior, I would monitor him for now. If he's still lethargic in the morning, I would have him seen by a vet for a health check.

It does sound like Harley is feeling sick, and this lethargy could be caused by a systemic illness, infection, inflammation, or injury. The runny nose could be due to a respiratory infection or allergies, while her looking at her behind could be due to impacted anal sacs, pain, or intestinal worms. I do think it would be a good idea to have her seen by a vet tomorrow, and I don't feel you need to rush to the the vet tonight if she is eating and drinking. But definitely have her seen by a vet in the morning for a health check if she is still acting this way tomorrow.

I'm sorry Maisy isn't feeling well at the moment. Don't worry about the temperature of her nose, as it's not considered a sign of illness in dogs. That's because a dog's nose can change from cold to warm just by sitting next to a heat source or lying in the sun. The sneezing could be caused by a respiratory infection or allergies. I would monitor Maisy for now, and should the sneezing continue over the next 24-48 hours, she become lethargic, her appetite diminishes, and/or she develops other signs, I would have her seen by a vet.