Why did my dog die suddenly after sneezing blood and blood clots?

Again, I'm sorry you lost Honey suddenly. One thing that comes to mind to me is a splenic hemangiosarcoma (tumor on the spleen). The dog acts completely normal while this tumor is growing (or shows only very subtle signs of illness), and then suddenly crashes and dies when the tumor ruptures (which they do). It appears to come out of nowhere. This happened to my dog. He seemed completely fine, then one night out of nowhere, he was panting and having trouble breathing. I rushed him into the clinic, and he had a stomach full of fluid. There was nothing I could at that point in time. Another option is she got into something toxic. I wish I could give an exact answer, but without seeing her in person, I can't say for certain, but I hope this helps.

Oh my goodness, I am so sorry to hear this! I would be concerned that Maya either got into something toxic while she was out running around or she became overheated and died of heat stroke. There is also a chance she could have had an underlying heart condition that was never diagnosed. Finally there could have been some sort of trauma she encounter like being hit by a car. The watery blood that came out of her nose has most likely come from her lungs. This can be abnormal finding after an animal passes away under more traumatic circumstances. If this recently happened you could take Mays's remains in to your vet and request a necropsy be performed. This may help determine her cause of death. Much sympathy to you.

This is an emergency and you need to take your dog to a Pet ER or out of hours veterinarian now. There could be a bleeding tumor in your dog's upper airways, or a burst blood vessel and severe blood loss.

Poor Daisy! She is an older girl, and unfortunately this sneezing with blood in her snot could be due to a malignant growth (cancer) in her nasal cavity. It could also be due to a foreign body, fungal infection, or respiratory infection. Because this has been ongoing for a while, it's best that Daisy is seen by a vet either today or tomorrow. The vet can do a physical exam, blood tests, urinalysis, x-rays, and may look up her nasal cavity with an endoscope to diagnose what is causing her symptoms. Once a cause is found, the vet can discuss treatment options with you.

I'm so sorry for the loss of your dog! Unfortunately, the only way to know why she died would be to have an autopsy performed (called a necropsy in animals), either by your veterinarian or a veterinary pathologist if you have one nearby. Since it sounds like it happened quite suddenly and she was bleeding from her eyes, she may have had a bleeding disorder (this can be caused by ingesting rat poison, or by some hereditary or immune-mediated diseases), or she could have suffered a head trauma of some kind. But I'm afraid there's no way to know for sure without a necrospy. Again, I'm so sorry for your loss.

Im so sorry Luna isnt feeling well. Given her age and breed, the most likely culprit is allergies or an upper respiratory infection. The nose can be so inflamed from the aforementioned problems, it can start to bleed. Other unlikely causes are a foreign material stuck in the nose, high blood pressure, or (least likely) a mass in the nose. You should have her seem for the appropriate treatment. Hope this helps!

I would be concerned about possible damage to the sinus tissue, a platelet disorder leading to her bleeding easier or even something like a bacterial infection causing a vasculitis which is when the blood vessels get leaky. I would recommend Lucy get checked out by her veterinarian so they can make sure she doesn't have any sort of bleeding issue or infection as if either those are present this could get worse.