Q. My dog was treated for hookworm. He no longer has them but not eating his food anymore and has lost alot of weight he was treated 2 times within 6 mo
DR. CHRISTIE LONG, D.V.M., C.V.A.
A. Dogs can certainly get reinfected with parasites. That's why it's a good idea to use a monthly preventative for both heartworms and intestinal parasites. If he's not eating and has lost a lot of weight, he either has another parasite infestation, or there's another problem that's causing the lack of appetite and the weight loss. I'd recommend rechecking a fecal sample as well as running blood work and a urinalysis to look for underlying problems.