How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask purr doctor Your Own Question
purr doctor
purr doctor, Cat Veterinarian
Category: Cat
Satisfied Customers: 1053
Experience:  11yrs in feline-only medicine/surgery.
Type Your Cat Question Here...
purr doctor is online now
A new question is answered every 9 seconds

Why is my cats urine green I feed him Eukaneuba and before

Customer Question

Why is my cat's urine green? I feed him Eukaneuba and before that it was Science Diet. I had 2 other cats and they are perfectly normal. He also has been peeing all over the house. About a year ago, I had him tested for everything! Fecal, urine, blood... the only problem was he has high cholesterol. He is 6 years old in July, is neutered, and has been since he was 3 months old. He is also front declawed. He has been peeing all over the floor and most recently my desk. Please help!
Submitted: 7 years ago.
Category: Cat
Expert:  purr doctor replied 7 years ago.


I am sorry both you and your cat are going through this. I will certainly try to help.


Although I have never personally seen green urine, this is absolutely not normal. It could indicate infection. If you had him tested over a year ago, this is very outdated and things could have changed (that is the equivalent of about 8 years in his life span). If there hasn't been any major changes in his environment or stressful events, and if you have large, uncovered litter boxes, at least one per cat, this is probably a medical problem and should be addressed asap, especially since he is male.


First of all, there are 4 major medical conditions that occur that can cause urinating outside the box:

cystitis (sterile inflammation)



infection (least common)


The absolutely most important thing you can do is to have his urine checked and cultured (the best way to rule out infection). If he has anything other than an obvious infection, all other conditions have been linked to feeding dry foods (most any brand), and especially those foods with grains as fillers. The current recommendation for feeding cats is summarized on


Dry foods over concentrate the urine and cause all 3 conditions except infection due to lack of moisture. Most all dry foods today contain lots of grains as low quality protein sources (corn, wheat, soy, rice). These are added to increase pet food companies profit margins, but are a very un-natural protein source for cats. The not only create metabolic waste products in the urine that cats were never designed to deal with, grains increase the ph of the urine, which predisposes them to all these conditions. Yes, there are "urinary" formulas out there, but they changed the ph with chemicals, not naturally.


Some canned, grain free brands to look for are Innova Evo, Wellness Core, Pinnacle, Instinct, Before Grain, Weruva, and others. They are usually available at private pet stores and on line.


Please have his urine checked before this becomes more serious! If it is completely normal, I would be glad to help you trouble shoot a behavioral problem. If it is an infection, make sure you check his teeth (rear upper molars) because dental disease is a big cause of urinary tract infections.


If you need a vet that is good with cats, try


Thanks for your question. Let me know if I can do anything else.


JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

  • The response from the Expert literally saved my cat's life. Thank you from the bottom of my heart -- I will recommend all of my friends to you!!! Lucia Rincon, Georgia
< Previous | Next >
  • The response from the Expert literally saved my cat's life. Thank you from the bottom of my heart -- I will recommend all of my friends to you!!! Lucia Rincon, Georgia
  • I will use your service again. I was very pleased with the response and the fact that you have a low cost option so that those of us on fixed income can have questions answered. I will also recommend you to others. Karen Jackson Heights, NY
  • You helped us to come to what we believe is a better next step in Jack's treatment, and hopefully have saved us $800!! Thanks again! Jack's Mom Tuscon, AZ
  • The vet said that the information and my following it will be what made the difference. Thanks again for being so very helpful. Tracy Grayson, LA
  • My oldest male cat had a seizure this evening. This site was the first place I could think of to go after the seizure had passed. Dr. Lucy was fantastic and she was spot on! Debbie USA
  • I must tell you I found this site by accident and was amazed when I asked a question of the Veteranians online. I wish I could have found it sooner it could have made such a difference in the outcome of my pet's surgery. However, I am passing along the information to my sister-in-law (a cat-rescue person who is also a nurse), and perhaps it will help someone else who may experience the same problem. The doctor who answered my question was amazing, and while it didn't come it time to change the outcome of my situation, it is reassuring to know the caliber of Vets/Doctors that you have at JustAnswer. Thank you for being there. Alice H. Jacksonville, Fl.
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK

Meet The Experts:

  • Terri


    Feline Healthcare Expert

    Satisfied Customers:

    Expert in feline health and behavior. 20 years experience with cats.
< Last | Next >
  • Terri's Avatar


    Feline Healthcare Expert

    Satisfied Customers:

    Expert in feline health and behavior. 20 years experience with cats.
  • Dr. Gary's Avatar

    Dr. Gary

    Cat Veterinarian

    Satisfied Customers:

    DVM, Emergency Veterinarian; BS (Physiology) Michigan State Univ
  • Cher's Avatar


    Feline Specialist

    Satisfied Customers:

    Feline Healthcare & Behavior Specialist 40+ years Experience
  • Lori's Avatar


    Feline Healthcare

    Satisfied Customers:

    16 yrs health care mgmt & issues relating to cats, reproductive issues and multicat environments
  • Micki's Avatar


    Expert in cat behavior and health

    Satisfied Customers:

    Expert in cat medical and behavior issues.
  • Candy R.'s Avatar

    Candy R.

    Veterinary Technician

    Satisfied Customers:

    Practicing Veterinary Technician for 26 years.Former Veterinary Practice Owner, Technician Trainer
  • Theresa's Avatar


    A Voice for your Pet

    Satisfied Customers:

    19+ years in animal medicine as a veterinary technician