My senior chihuahua lost a bit of weight. Should I be concerned?

Question

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. Pet's info: Dog | Chihuahua | Male | neutered | 3.9 lbs

Daniel Fonza, DVM · Accepted Answer

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.

My senior chihuahua lost a bit of weight. Should I be concerned?

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