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My 6-month-old puppy is losing weight but is active. Is it serious?

Updated On September 23rd, 2025

Pet's info: Dog | Lhasa Apso | Male | unneutered | 2 lbs

Pixel is 6 months old lhasa apso. 2 weeks ago his weight was 5.3 Kgs and last week it was 5.1 Kgs. Today he is 5.0 Kgs. I showed to the VET last week he said nothing to worry about and let him grow. Though he is active, eating well. Still I am worried about the weight. Can it be something serious like kidney disease? What to observe.Everything is normal except weight :( he used to urinate frequently but now it is 6 times in 24 hours also he drinks water but it is hot in India.

1 Answer

Most Helpful Answer

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Answered By Catherine Stecyk

Veterinarian

Published on May 23rd, 2019

Hello and thank you for reaching out to Petco Pet Education Center, formerly Petcoach. It would be very unusual for a dog that young to have developed kidney disease, and if it was severe kidney disease, I would not expect him to be active and eating well. He may be drinking and urinating more due to the change in temperature outside. I recommend ensuring you are feeding him adequate calories based on the feeding chart on Pixel's food, and continuing to monitor his weight. Eventually he will plateau at a certain weight, and may fluctuate up and down from that weight. As long as he is acting normally and eating well, and not experiencing any vomiting or diarrhea I would not be concerned! I hope this is helpful!

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