What to do if my dog won't eat and is acting sad or lethargic?

Hello, depending on how long this has been going on you may give him more time to snap out of it. If he continues to be sad for longer than a day, or if he has a decreased appetite, vomiting, or diarrhea, then you should have your puppy seen by a veterinarian. Hope this helps and best of luck,

You need to take Dora into a vet immediately. It's very concerning that such a young puppy isn't eating anything, has vomited, and has been lethargic. That indicates she is sick, and because young puppies can be so fragile and go downhill quite quickly, she needs veterinary care now. Pease take her into a vet asap.

Hi. If he is acting abnormal, and its notike him, I would recommend an exam and labwork by your veterinarian. There are many things that can cause lethargy unfortunately. So without more information and testing, it is hard to say what it could be

Hi there and thank you for using Petco Pet Education Center, formerly Petcoach to address your concern. If Mojo is lethargic and not wanting to eat, I would recommend having a veterinarian examine him so that the most appropriate diagnostic and treatment recommendations can be made. I would recommend having his blood tested and x-rays taken of his abdomen. I hope this helps guide you in the right direction. Please let me know if you have any other questions or concerns and I would be more than happy to help you further.

I recommend to have Taffy examined today by the veterinarian. Young puppies should have big appetites and are highly adaptable. I am concerned Taffy is sick and this is why she is not eating or drinking. I recommend to have her examined today and checked for parasites and maybe even parvo virus. I hope she feels better quickly.

I would have Moja seen by a vet immediately. It's very concerning when a young puppy won't eat, and it could be caused by a serious illness, such as parvovirus, distemper, intestinal worms, infection, or injury among other causes. It's important to have the cause of his anorexia diagnosed so he can be treated. Please take him into a vet now.

Eating less than before and losing weight is concerning. This may be caused by a tooth problem, pain in the mouth or jaws, gastrointestinal disease, general pain and many other conditions. Unfortunately it is a very unspecific sign so I suggest you take your dog to your vet for an exam and some blood work to get to the bottom of this.