My senior chihuahua lost a bit of weight. Should I be concerned?
Updated On September 23rd, 2025
Pet's info: Dog | Chihuahua | Male | neutered | 3.9 lbs
My 15 year old chihuahua averaged a weight around 4.1 lbs for many years. The last few months of his life he dropped to 3.9. Is this cause for concern for a dog his size? I’m asking because I have another chihuahua that’s the same size he was and I want to keep an eye out for her.
2 Answers
Most Helpful Answer
Published on January 6th, 2018
Hi there and thank you for using pet coach to address your concern. If you are noticing a loss of weight, especially at this age, I would recommend having his blood tested to make sure that there are no changes on his bloodwork that might indicate a systemic disease or infection. If blood work is normal then an abdominal ultrasound would be my next recommendation to find out why he is losing weight. I hope this helps guide you in the right direction. Please let me know if you have any other questions or concerns.
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on September 4th, 2019
He looks like he is in healthy condition, so I don't think you need to be too concerned. If he is having diarrhea, vomiting, a big drop in his appetite, if he seems short of breath or has had any coughing, or if he seems like his attitude is different--not as playful, is sleeping a lot more, seems lethargic, etc-- then take him in to your vet. At his age, it would be wise to consider having some bloodwork run just as a senior screening to make sure everything is looking good. Thank you for asking Petco Pet Education Center, formerly Petcoach!
1Pet Parents found this answer helpful
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