Before judging, here's the background story.

Two months ago, my cat fell and fractured a hind leg. I took him to the only specialized vet in a 200-mile radius, and an orthopedist operated on him. The bill was $2,800 which I gladly paid.

He was improving, but then he suddenly became ill; he's dragging his hind leg, his paw is bending under the leg, he can barely stand, his eye's drooping a bit, and he's eating very little. He's always sleeping. I'm not a doctor, but it looked like some form of a heart attack to me.

So, I take him to the specialized vet again and they do $900 worth of tests. After all these tests, they say that he possibly has a blood clot, but that they have to operate to make sure. I told them not to operate now because 1) He's 11 years old and still recovering from the 1st operation, 2) I'm still recovering from the $4,000, 3) if the operation involving a fracture was $2,800, this operation will easily be over $3,500. I cannot afford it now.

I asked them if they could prescribe something for the blood clot, but they refused because they insist on operating. I don't want to put my cat under the knife and, financially speaking, I can't pay $3,500 unless I know he'll get better.

Since the vets said that it was possibly a blood clot, I want to give him something that may dissolve it.

My question: what can I give my cat for the blood clot?

  • 1
    Have you tried seeking advice from another vet? Blood clots can occur in more places than the heart (the broken foot for example). The symptoms are pretty general and could also result from infection, but only a vet would have full knowledge. I would suggest getting a copy of the results and consulting another vet before going forward with the operation. Also consider the his age, quality of life, and your financial situation before going forward. I know that’s hard to think about, but don’t feel like a terrible pet owner if you would be in serious debt.
    – user40385
    Commented Mar 16, 2022 at 23:19
  • 1
    This doesn't make any sense. Blood clots either block an artery or vein in which case your cat would either die due to organ failure (of the organ whose artery is blocked) or lose a limb, or they are handled through thrombolytics. If it is the former, you probably wouldn't have time to have a chat here. Is your cat already on blood thinners?
    – ck1987pd
    Commented Mar 17, 2022 at 0:34
  • Can you share the vet reports stating that there is a clot? Where exactly is the clot and how does the vet know it? Can you share the ultrasound results if you rvet had one?
    – ck1987pd
    Commented Mar 17, 2022 at 0:38
  • 2
    the only bloodthinner you can use is acetylsalicylic acid AND ONLY IF PRESCRIBED BY YOUR VET the dosage for cats are 10mg/kg bodyweight once every two days DO NEVER START TREATING YOUR CAT WITH ANY MEDICATION SUGGESTED BY A RANDOM STRANGER ON THE INTERNET.ASK YOUR VET AND FOLLOW HIS/HER ADVICE. Commented Mar 17, 2022 at 5:30
  • 2
    If another vet is to far away you could try to have a call and send documents by email or have a video call. A second oppinion would be best. Even with humans and surgeries this is common. Commented Mar 17, 2022 at 8:39

1 Answer 1


You must consider the indication and counterindication.

  • If there is a blood clot (and that's a very vague if) then a blood thinner can help dissolve it.
  • But if the fracture isn't healed yet the blood thinner may increase any internal bleeding there is or cause internal bleeding if there is none right now. That's possibly the reason why this vet didn't prescribe any for your cat.
  • If his condition is not caused by a blood clot (and keep in mind that the vet wasn't even sure about it), then you have all the negative side effects without any gain.

Please keep in mind that I'm not a vet, but the symptoms you describe can be caused by many things. Whether or not a blood clot is even one of them is something I cannot answer with my limited knowledge, but it honestly sounds strange. As harsh as it sounds, if this really was a heart attack, your cat would be dead before any over-the-counter medication would take effect. Even if this is not a heart attack but a blood clot in any other organ, the tissue damage would most like be irreparable by the time the medication takes effect. My personal advice (again, without any knowledge of veterinarian medicine) is to not self-medicate your cat with blood thinners.

In the comments there already were more probable causes mentioned like an infection or inflammation. That can effect the whole body and of course the appetite. In medicine there is a saying that "If you hear hooves, think horse, not zebra", meaning that you need to rule out the most common and obvious causes before you should even think about some rare condition. In this case, when I hear "weak, sleepy and low appetite" I think it's caused by the existing fracture and after-effects of the operation, not a blood clot.

If I were in your situation, I would try an anti-inflammatory pain killer for cats for 3 days and see if it improves anything. Please only give your cat medication specifically designed for cats, otherwise you might poison him! For more information, read this post.

In case the fracture doesn't heal due to a calcium deficit, I would offer the cat some lactose free milk or plain yogurt (yogurt must not contain the sweetener xylithol, because it's poisonous for cats).

  • 1
    @Stephie My, bad, you're right. I thought I saw something about how boiling milk changes lactose into another substance, but that it changes the taste and most people prefer the unboiled variant with added lactase. Seems my memory failed me with this one
    – Elmy
    Commented Mar 18, 2022 at 11:37
  • I’m taking my cat back to the vet on Monday. He’s dragging his legs even more now. I just didn’t want any permanent damage, so I wanted to try something in the meantime.
    – rbhat
    Commented Mar 19, 2022 at 20:03
  • @rbhat I totally understand you. It's very hard to not be able to do anything. But blood thinners can do more damage than good, especially if it turns out the cat has to be operated again. Then being on blood thinners can make any operation impossible.
    – Elmy
    Commented Mar 19, 2022 at 20:55

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