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Why is my senior dog weak and covered in ticks? Is it serious?

Updated on September 23rd, 2025

Pet's info: Dog | German Shepherd | Male | 80 lbs

Dog became weak... covered with ticks.. senior dog..

1 Answer

Most Helpful Answer

Laura Johnson VMD

Answered By Laura Johnson VMD

Veterinarian

Published on October 4th, 2017

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Poor Maxi!

There are many reasons for a senior dog to become weak: kidney, liver problems, arthritis, neurological degeneration of the spine, cancer.

Tick infestations, if severe can make any age dog weak by removing too much blood and causing anemia. Also ticks carry infectious diseases like Lyme, Ehrlichia, anaplasma and many others.

I recommend, ideally, to have Maxi seen by a Vet and have blood work done and check her for the above 3 tick borne diseases. Then if healthy enough give her a flea and tick preventative. There are great drugs out now for fleas and ticks, like Nexgard, Simparica, Bravecto and the Seresto collar.

I am so sorry that Maxi is sick and I wish her a speedy recovery! If you need anything else please contact us, we are here to help!
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