Hi i have a Chihuahua shes around 20 years old. My question is why would she in 1wk or so has lost so much weight i can see her little ribs. She eats very little puppy food. So she does not eat her food only her treats.

We would need to do an examination and make recommendations from there. You can call the office for an appointment if you like. 970-352-8835

Please inform me what it needs to be done

I would take her in to Apline because there could be a multitude of things. They can't diagnose without seeing her first. They are groovy people.