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 Bruce Coston Your Own Question
Bruce Coston
Bruce Coston, Cat Veterinarian
Category: Cat
Satisfied Customers: 327
Experience:  22 years of experience as companion animal veterinarian. Practice owner. Author of: Ask The Animals
Type Your Cat Question Here...
Bruce Coston is online now
A new question is answered every 9 seconds

My cats toenail beds are turning black and soft. It started

Resolved Question:

My cat's toenail beds are turning black and soft. It started with one and now progressing. He is diabetic. I can't seem to find anything on-line. Can you help.
Submitted: 7 years ago.
Category: Cat
Expert:  Bruce Coston replied 7 years ago.



That's quite a strange question. Can't say that we see that very often in cats.


My first thought is that this situation is related in some way to the diabetes. Whether this is a primary effect of the disease on the production of the keratin in the nails or some infection (bacterial or fungal) secondary to the diabetes is not clear.


I think it would be wise to do some cytology of the nail beds. If this is bacterial or fungal, a cytology may be able to identify the organisms. A cytology is done by taking some of the material from the source (in this case the nails and nail beds) and smearing it onto a glass slide and evaluating it under a microscope. It's possible that a culture may need to be done if cytology is not definitive. These tests would be able to clarify if medications are indicated and which ones. Antibiotics would be used if the problem was bacterial. Antifungals would be used if it was fungal.


If neither is identified, it may be related to the hormonal and metabolic effects of the diabetes itself. Then it would be vital to get the diabetes very well controlled in order for the secondary issues to resolve.


Hope these thoughts help.


Dr. Coston

Bruce Coston and 2 other Cat Specialists are ready to help you

Related Cat Questions