Sensitive at tail base.

Dr. Marie replied:

I've seen cats do exactly what you are talking about. While most cats are a little sensitive in this area, it sounds like Callie reacts stronger than most cats when her back near her tail is touched.

I can think of four possible reasons for this.

Is she on a good flea prevention? (i.e. a prescription strength one.) If not, even if she is an indoor cat, a few fleas can cause this type of reaction. Often, it can be extremely difficult to find any fleas. If she has any hair loss at all in this area then this would support this theory. Cats with fleas will often be super sensitive in this area and when you scratch them they are so itchy that they make grooming motions with their mouth even though. Here's an example of a cat doing this. (Skip to 0:30 to see what I mean):



The next possibility is something called feline hyperesthesia syndrome. You can read about this here. This condition can often be treated with medication.

Third, it's possible that she has something called lumbosacral syndrome. This is a condition where a cat gets arthritis pain at the point where the back meets the tail. This can sometimes be diagnosed with xrays. Cats with this condition can often be treated with an antiinflammatory medication such as Metacam.

And finally, it may just be normal. I have seen some cats that do this and there is no medical reason for it. However, if this is a new behavior for her then there is probably a medical reason.

I hope that helps!

Dr. Marie.


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Dr. Marie replied:

Jenn, is this a new behavior for her, or has she done this all of her life? If it's new, how long would you say it has been happening for?

Dr. Marie replied:

If I had a case like this, here are some things that I would likely do:

First, I would try a dose of a prescription strength flea medicine such as Revolution. (Don't try a pet store product - they don't work.) Even though fleas are not common on indoor cats, they can happen. You can bring fleas home in your pantleg and they can jump on to the cat. I have had many cases where I couldn't see fleas at all even after 10 minutes of inspection, but when we applied Revolution, later that day the owner found dead fleas on the cat afterwards.) So, I'd apply Revolution and then see if the problem goes away. If so, then you need to treat for another 2 months. (For more explanation on fleas, see here: Your pet has fleas.

If, after 7-10 days, there has been no improvement then I would likely take an xray to look for signs of lumbosacral syndrome. If I had any suspicion of this then I would do a trial of some antiinflammatory medication to see how that works.

If that didn't work then we're likely dealing with hyperesthesia syndrome. Many cats with this problem will improve with an anti-anxiety drug (even if they are not overtly anxious) such as Reconcile.

Your vet will likely be happy to dispense Revolution for you, so you could give them a call and see if they could do that.

Just so you know, I'll be heading offline soon (bedtime here), but I'll be back on tomorrow to check on your question.

Dr. Marie.