Petco Text Logo
Petco Pet Logo

  • Two Easy Ways to Start Earning Rewards!

Why is my indoor/outdoor cat suddenly lethargic and walking stiffly?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | unneutered | 6 lbs

Hi, my indoor/outdoor cat suddenly became very lethargic about two days ago. He's still eating, drinking, and purring at times but will only get up if he absolutely needs to. He's not as reactive as he used to be and when he walks it's not graceful and fluid, it's almost a heavier, stiffer walk if that makes any sense. Fearing that he might've gotten into something, we gave him a bath yesterday and he seemed to perk up a little but now he's back to being lethargic. There's no signs of injury.

2 Answers

Most Helpful Answer

Image profile

Answered By Dr. Leigh, DVM

Veterinarian

Published on March 30th, 2017

Lethargy can be a sign of many different diseases. I am not sure of his age but he should be examined by a vet to determine the cause. He could have an infection, musculoskeletal issue, kidney disease, liver disease, diabetes, thyroid issue, etc. Your vet can run some lab-work and take x-rays, if needed, to help diagnose and then determine the best way to treat. He may need an antibiotic, anti-inflammatory, or other medications, depending on the cause. Hope he feels better soon!

Vote icon

1Pet Parents found this answer helpful

Other Answers

  • Image profile

    Answered By Jacqueline Nobles, DVM, DACVECC

    Veterinarian, Board-Certified Emergency/Critical Care Specialist

    Published on

    The heavier stiffer walk is suggestive of a muscular or neurologic disease process. In an indoor/outdoor cat, I would be concerned about infectious disease especially parasites or feline infectious peritonitis. I would advise you to have him evaluated by your veterinarian as soon as possible.

    Vote icon

    1Pet Parents found this answer helpful

See More Answers

Related Questions

Petco Pet Education Center
Health & Wellbeing
What fish dog food helps dry skin if my dog eats Science Diet?
Is your dog's dry skin a concern? A certified vet offers expert advice on finding the best fish-based dog food alternatives to Science Diet for essential oils.
Updated on February 04, 2026
Petco Pet Education Center
Food & Nutrition
What's the best way to feed my hamster when I'm going on a trip?
Planning a trip to Chicago and need to feed your Syrian hamster? A certified vet offers expert advice on feeding options for short and long trips, plus finding trusted pet sitters.
Updated on December 04, 2025
Petco Pet Education Center
Food & Nutrition
Can chickens eat bell peppers daily and what about veggie salads?
Can your chickens eat bell peppers and salads? Veterinarian Dr. Elizabeth offers expert advice on safe feeding, frequency, and how fresh veggies boost vibrant yolks.
Updated on December 04, 2025
Petco Pet Education Center
Food & Nutrition
My newly adopted pet won't eat hay. What can I do to encourage it?
Adopted a pet not eating hay? Dr. Stafford, a certified vet, offers expert guidance on encouraging hay consumption, including adjusting pellets and trying fresh types.
Updated on December 04, 2025
Petco Pet Education Center
Health & Wellbeing
My pet is breathing hard, not eating, and lethargic. What's wrong?
Is your rat breathing heavily, won't eat, and has no energy? A Licensed Vet Tech explains potential causes like infection and age, urging a vet visit for diagnosis.
Updated on December 04, 2025
Petco Pet Education Center
Health & Wellbeing
My dwarf hamster has a shut eye and is limping. What should I do?
Is your dwarf hamster struggling with eye issues or limping? A trusted vet offers expert guidance on symptoms and crucial next steps for comfort and care.
Updated on December 04, 2025
image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Book Now

Sponsored